lib.rs 24.4 KB
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// Copyright 2017 Parity Technologies (UK) Ltd.
// This file is part of Polkadot.

// Polkadot is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.

// Polkadot is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.

// You should have received a copy of the GNU General Public License
// along with Polkadot.  If not, see <http://www.gnu.org/licenses/>.

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//! The Polkadot runtime. This can be compiled with `#[no_std]`, ready for Wasm.
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#![cfg_attr(not(feature = "std"), no_std)]
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// `construct_runtime!` does a lot of recursion and requires us to increase the limit to 256.
#![recursion_limit="256"]
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mod attestations;
mod claims;
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mod parachains;
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mod slot_range;
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mod registrar;
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mod slots;
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mod crowdfund;
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use rstd::prelude::*;
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use substrate_primitives::u32_trait::{_1, _2, _3, _4, _5};
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use codec::{Encode, Decode};
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use primitives::{
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	AccountId, AccountIndex, Balance, BlockNumber, Hash, Nonce, Signature, Moment,
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	parachain::{self, ActiveParas}, ValidityError,
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};
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use sr_primitives::{
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	create_runtime_str, generic, impl_opaque_keys,
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	ApplyResult, Permill, Perbill, RuntimeDebug,
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	transaction_validity::{TransactionValidity, InvalidTransaction, TransactionValidityError},
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	weights::{Weight, DispatchInfo}, curve::PiecewiseLinear,
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	traits::{BlakeTwo256, Block as BlockT, StaticLookup, SignedExtension, OpaqueKeys},
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};
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use version::RuntimeVersion;
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use grandpa::{AuthorityId as GrandpaId, fg_primitives};
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#[cfg(any(feature = "std", test))]
use version::NativeVersion;
use substrate_primitives::OpaqueMetadata;
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use sr_staking_primitives::SessionIndex;
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use paint_support::{
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	parameter_types, construct_runtime, traits::{SplitTwoWays, Currency, Randomness}
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};
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use im_online::sr25519::AuthorityId as ImOnlineId;
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use system::offchain::TransactionSubmitter;
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use paint_transaction_payment_rpc_runtime_api::RuntimeDispatchInfo;
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#[cfg(feature = "std")]
pub use staking::StakerStatus;
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#[cfg(any(feature = "std", test))]
pub use sr_primitives::BuildStorage;
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pub use timestamp::Call as TimestampCall;
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pub use balances::Call as BalancesCall;
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pub use attestations::{Call as AttestationsCall, MORE_ATTESTATIONS_IDENTIFIER};
pub use parachains::{Call as ParachainsCall, NEW_HEADS_IDENTIFIER};
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/// Implementations of some helper traits passed into runtime modules as associated types.
pub mod impls;
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use impls::{CurrencyToVoteHandler, TargetedFeeAdjustment, ToAuthor, WeightToFee};
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/// Constant values used within the runtime.
pub mod constants;
use constants::{time::*, currency::*};

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// Make the WASM binary available.
#[cfg(feature = "std")]
include!(concat!(env!("OUT_DIR"), "/wasm_binary.rs"));

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/*
// KUSAMA: Polkadot version identifier; may be uncommented for Polkadot mainnet.
/// Runtime version (Polkadot).
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pub const VERSION: RuntimeVersion = RuntimeVersion {
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	spec_name: create_runtime_str!("polkadot"),
	impl_name: create_runtime_str!("parity-polkadot"),
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	authoring_version: 1,
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	spec_version: 1000,
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	impl_version: 0,
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	apis: RUNTIME_API_VERSIONS,
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};
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*/

// KUSAMA: Kusama version identifier; may be removed for Polkadot mainnet.
/// Runtime version (Kusama).
pub const VERSION: RuntimeVersion = RuntimeVersion {
	spec_name: create_runtime_str!("kusama"),
	impl_name: create_runtime_str!("parity-kusama"),
	authoring_version: 1,
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	spec_version: 1018,
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	impl_version: 0,
	apis: RUNTIME_API_VERSIONS,
};
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/// Native version.
#[cfg(any(feature = "std", test))]
pub fn native_version() -> NativeVersion {
	NativeVersion {
		runtime_version: VERSION,
		can_author_with: Default::default(),
	}
}

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/// Avoid processing transactions that are anything except staking and claims.
///
/// RELEASE: This is only relevant for the initial PoA run-in period and may be removed
/// from the release runtime.
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#[derive(Default, Encode, Decode, Clone, Eq, PartialEq, RuntimeDebug)]
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pub struct OnlyStakingAndClaims;
impl SignedExtension for OnlyStakingAndClaims {
	type AccountId = AccountId;
	type Call = Call;
	type AdditionalSigned = ();
	type Pre = ();
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	fn additional_signed(&self) -> rstd::result::Result<(), TransactionValidityError> { Ok(()) }
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	fn validate(&self, _: &Self::AccountId, call: &Self::Call, _: DispatchInfo, _: usize)
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		-> TransactionValidity
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	{
		match call {
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			Call::Balances(_) | Call::Slots(_) | Call::Registrar(_) | Call::Democracy(_)
				=> Err(InvalidTransaction::Custom(ValidityError::NoPermission.into()).into()),
			_ => Ok(Default::default()),
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		}
	}
}

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type NegativeImbalance = <Balances as Currency<AccountId>>::NegativeImbalance;
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parameter_types! {
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	pub const BlockHashCount: BlockNumber = 250;
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	pub const MaximumBlockWeight: Weight = 1_000_000_000;
	pub const AvailableBlockRatio: Perbill = Perbill::from_percent(75);
	pub const MaximumBlockLength: u32 = 5 * 1024 * 1024;
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	pub const Version: RuntimeVersion = VERSION;
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}

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impl system::Trait for Runtime {
	type Origin = Origin;
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	type Call = Call;
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	type Index = Nonce;
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	type BlockNumber = BlockNumber;
	type Hash = Hash;
	type Hashing = BlakeTwo256;
	type AccountId = AccountId;
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	type Lookup = Indices;
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	type Header = generic::Header<BlockNumber, BlakeTwo256>;
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	type Event = Event;
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	type BlockHashCount = BlockHashCount;
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	type MaximumBlockWeight = MaximumBlockWeight;
	type MaximumBlockLength = MaximumBlockLength;
	type AvailableBlockRatio = AvailableBlockRatio;
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	type Version = Version;
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}

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parameter_types! {
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	pub const EpochDuration: u64 = EPOCH_DURATION_IN_BLOCKS as u64;
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	pub const ExpectedBlockTime: Moment = MILLISECS_PER_BLOCK;
}

impl babe::Trait for Runtime {
	type EpochDuration = EpochDuration;
	type ExpectedBlockTime = ExpectedBlockTime;
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	// session module is the trigger
	type EpochChangeTrigger = babe::ExternalTrigger;
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}

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impl indices::Trait for Runtime {
	type IsDeadAccount = Balances;
	type AccountIndex = AccountIndex;
	type ResolveHint = indices::SimpleResolveHint<Self::AccountId, Self::AccountIndex>;
	type Event = Event;
}

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parameter_types! {
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	pub const ExistentialDeposit: Balance = 100 * CENTS;
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	pub const TransferFee: Balance = 1 * CENTS;
	pub const CreationFee: Balance = 1 * CENTS;
}

/// Splits fees 80/20 between treasury and block author.
pub type DealWithFees = SplitTwoWays<
	Balance,
	NegativeImbalance,
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	_4, Treasury,   // 4 parts (80%) goes to the treasury.
	_1, ToAuthor,   // 1 part (20%) goes to the block author.
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>;

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impl balances::Trait for Runtime {
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	type Balance = Balance;
	type OnFreeBalanceZero = Staking;
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	type OnNewAccount = Indices;
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	type Event = Event;
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	type DustRemoval = ();
	type TransferPayment = ();
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	type ExistentialDeposit = ExistentialDeposit;
	type TransferFee = TransferFee;
	type CreationFee = CreationFee;
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}

parameter_types! {
	pub const TransactionBaseFee: Balance = 1 * CENTS;
	pub const TransactionByteFee: Balance = 10 * MILLICENTS;
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	// for a sane configuration, this should always be less than `AvailableBlockRatio`.
	pub const TargetBlockFullness: Perbill = Perbill::from_percent(25);
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}

impl transaction_payment::Trait for Runtime {
	type Currency = Balances;
	type OnTransactionPayment = DealWithFees;
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	type TransactionBaseFee = TransactionBaseFee;
	type TransactionByteFee = TransactionByteFee;
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	type WeightToFee = WeightToFee;
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	type FeeMultiplierUpdate = TargetedFeeAdjustment<TargetBlockFullness>;
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}

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parameter_types! {
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	pub const MinimumPeriod: u64 = SLOT_DURATION / 2;
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}
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impl timestamp::Trait for Runtime {
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	type Moment = u64;
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	type OnTimestampSet = Babe;
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	type MinimumPeriod = MinimumPeriod;
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}

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parameter_types! {
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	pub const UncleGenerations: u32 = 0;
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}

// TODO: substrate#2986 implement this properly
impl authorship::Trait for Runtime {
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	type FindAuthor = session::FindAccountFromAuthorIndex<Self, Babe>;
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	type UncleGenerations = UncleGenerations;
	type FilterUncle = ();
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	type EventHandler = (Staking, ImOnline);
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}

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parameter_types! {
	pub const Period: BlockNumber = 10 * MINUTES;
	pub const Offset: BlockNumber = 0;
}

impl_opaque_keys! {
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	pub struct SessionKeys {
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		pub grandpa: Grandpa,
		pub babe: Babe,
		pub im_online: ImOnline,
		pub parachain_validator: Parachains,
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	}
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}

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parameter_types! {
	pub const DisabledValidatorsThreshold: Perbill = Perbill::from_percent(17);
}

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impl session::Trait for Runtime {
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	type OnSessionEnding = Staking;
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	type SessionHandler = <SessionKeys as OpaqueKeys>::KeyTypeIdProviders;
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	type ShouldEndSession = Babe;
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	type Event = Event;
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	type Keys = SessionKeys;
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	type ValidatorId = AccountId;
	type ValidatorIdOf = staking::StashOf<Self>;
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	type SelectInitialValidators = Staking;
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	type DisabledValidatorsThreshold = DisabledValidatorsThreshold;
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}

impl session::historical::Trait for Runtime {
	type FullIdentification = staking::Exposure<AccountId, Balance>;
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	type FullIdentificationOf = staking::ExposureOf<Runtime>;
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}

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paint_staking_reward_curve::build! {
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	const REWARD_CURVE: PiecewiseLinear<'static> = curve!(
		min_inflation: 0_025_000,
		max_inflation: 0_100_000,
		ideal_stake: 0_500_000,
		falloff: 0_050_000,
		max_piece_count: 40,
		test_precision: 0_005_000,
	);
}

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parameter_types! {
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	// Six sessions in an era (24 hours).
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	pub const SessionsPerEra: SessionIndex = 6;
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	// 28 eras for unbonding (28 days).
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	// KUSAMA: This value is 1/4 of what we expect for the mainnet.
	pub const BondingDuration: staking::EraIndex = 7;
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	pub const RewardCurve: &'static PiecewiseLinear<'static> = &REWARD_CURVE;
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}
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impl staking::Trait for Runtime {
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	type RewardRemainder = Treasury;
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	type CurrencyToVote = CurrencyToVoteHandler;
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	type Event = Event;
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	type Currency = Balances;
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	type Slash = Treasury;
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	type Reward = ();
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	type SessionsPerEra = SessionsPerEra;
	type BondingDuration = BondingDuration;
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	type SessionInterface = Self;
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	type Time = Timestamp;
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	type RewardCurve = RewardCurve;
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}

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parameter_types! {
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	// KUSAMA: These values are 1/4 of what we expect for the mainnet.
	pub const LaunchPeriod: BlockNumber = 7 * DAYS;
	pub const VotingPeriod: BlockNumber = 7 * DAYS;
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	// KUSAMA: This is a bit short; should be increased to 3 hours.
	pub const EmergencyVotingPeriod: BlockNumber = 1 * HOURS;
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	pub const MinimumDeposit: Balance = 100 * DOLLARS;
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	pub const EnactmentPeriod: BlockNumber = 8 * DAYS;
	pub const CooloffPeriod: BlockNumber = 7 * DAYS;
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}

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impl democracy::Trait for Runtime {
	type Proposal = Call;
	type Event = Event;
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	type Currency = Balances;
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	type EnactmentPeriod = EnactmentPeriod;
	type LaunchPeriod = LaunchPeriod;
	type VotingPeriod = VotingPeriod;
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	type EmergencyVotingPeriod = EmergencyVotingPeriod;
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	type MinimumDeposit = MinimumDeposit;
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	/// A straight majority of the council can decide what their next motion is.
	type ExternalOrigin = collective::EnsureProportionAtLeast<_1, _2, AccountId, CouncilCollective>;
	/// A super-majority can have the next scheduled referendum be a straight majority-carries vote.
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	// KUSAMA: A majority can have the next scheduled legislation be majority-carries.
	type ExternalMajorityOrigin = collective::EnsureProportionAtLeast<_1, _2, AccountId, CouncilCollective>;
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	/// A unanimous council can have the next scheduled referendum be a straight default-carries
	/// (NTB) vote.
	type ExternalDefaultOrigin = collective::EnsureProportionAtLeast<_1, _1, AccountId, CouncilCollective>;
	/// Two thirds of the technical committee can have an ExternalMajority/ExternalDefault vote
	/// be tabled immediately and with a shorter voting/enactment period.
	type FastTrackOrigin = collective::EnsureProportionAtLeast<_2, _3, AccountId, TechnicalCollective>;
	// To cancel a proposal which has been passed, 2/3 of the council must agree to it.
	type CancellationOrigin = collective::EnsureProportionAtLeast<_2, _3, AccountId, CouncilCollective>;
	// Any single technical committee member may veto a coming council proposal, however they can
	// only do it once and it lasts only for the cooloff period.
	type VetoOrigin = collective::EnsureMember<AccountId, TechnicalCollective>;
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	type CooloffPeriod = CooloffPeriod;
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}
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type CouncilCollective = collective::Instance1;
impl collective::Trait<CouncilCollective> for Runtime {
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	type Origin = Origin;
	type Proposal = Call;
	type Event = Event;
}

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parameter_types! {
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	pub const CandidacyBond: Balance = 100 * DOLLARS;
	pub const VotingBond: Balance = 5 * DOLLARS;
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	pub const TermDuration: BlockNumber = 2 * HOURS;
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	pub const DesiredMembers: u32 = 13;
	pub const DesiredRunnersUp: u32 = 7;
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}

impl elections_phragmen::Trait for Runtime {
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	type Event = Event;
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	type Currency = Balances;
	type ChangeMembers = Council;
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	type CurrencyToVote = CurrencyToVoteHandler;
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	type CandidacyBond = CandidacyBond;
	type VotingBond = VotingBond;
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	type TermDuration = TermDuration;
	type DesiredMembers = DesiredMembers;
	type DesiredRunnersUp = DesiredRunnersUp;
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	type LoserCandidate = Treasury;
	type BadReport = Treasury;
	type KickedMember = Treasury;
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}

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type TechnicalCollective = collective::Instance2;
impl collective::Trait<TechnicalCollective> for Runtime {
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	type Origin = Origin;
	type Proposal = Call;
	type Event = Event;
}

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impl membership::Trait<membership::Instance1> for Runtime {
	type Event = Event;
	type AddOrigin = collective::EnsureProportionMoreThan<_1, _2, AccountId, CouncilCollective>;
	type RemoveOrigin = collective::EnsureProportionMoreThan<_1, _2, AccountId, CouncilCollective>;
	type SwapOrigin = collective::EnsureProportionMoreThan<_1, _2, AccountId, CouncilCollective>;
	type ResetOrigin = collective::EnsureProportionMoreThan<_1, _2, AccountId, CouncilCollective>;
	type MembershipInitialized = TechnicalCommittee;
	type MembershipChanged = TechnicalCommittee;
}

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parameter_types! {
	pub const ProposalBond: Permill = Permill::from_percent(5);
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	pub const ProposalBondMinimum: Balance = 100 * DOLLARS;
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	// KUSAMA: This value is 1/4 of that expected for mainnet
	pub const SpendPeriod: BlockNumber = 6 * DAYS;
	// KUSAMA: This value is 1/5 of that expected for mainnet
	pub const Burn: Permill = Permill::from_percent(1);
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}

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impl treasury::Trait for Runtime {
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	type Currency = Balances;
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	type ApproveOrigin = collective::EnsureProportionAtLeast<_3, _5, AccountId, CouncilCollective>;
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	type RejectOrigin = collective::EnsureProportionMoreThan<_1, _2, AccountId, CouncilCollective>;
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	type Event = Event;
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	type ProposalRejection = Treasury;
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	type ProposalBond = ProposalBond;
	type ProposalBondMinimum = ProposalBondMinimum;
	type SpendPeriod = SpendPeriod;
	type Burn = Burn;
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}
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impl offences::Trait for Runtime {
	type Event = Event;
	type IdentificationTuple = session::historical::IdentificationTuple<Self>;
	type OnOffenceHandler = Staking;
}

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type SubmitTransaction = TransactionSubmitter<ImOnlineId, Runtime, UncheckedExtrinsic>;

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parameter_types! {
	pub const SessionDuration: BlockNumber = EPOCH_DURATION_IN_BLOCKS as _;
}

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impl im_online::Trait for Runtime {
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	type AuthorityId = ImOnlineId;
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	type Event = Event;
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	type Call = Call;
	type SubmitTransaction = SubmitTransaction;
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	type ReportUnresponsiveness = Offences;
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	type SessionDuration = SessionDuration;
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}

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impl grandpa::Trait for Runtime {
	type Event = Event;
}

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parameter_types! {
	pub const WindowSize: BlockNumber = finality_tracker::DEFAULT_WINDOW_SIZE.into();
	pub const ReportLatency: BlockNumber = finality_tracker::DEFAULT_REPORT_LATENCY.into();
}

impl finality_tracker::Trait for Runtime {
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	type OnFinalizationStalled = ();
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	type WindowSize = WindowSize;
	type ReportLatency = ReportLatency;
}

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parameter_types! {
	pub const AttestationPeriod: BlockNumber = 50;
}

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impl attestations::Trait for Runtime {
	type AttestationPeriod = AttestationPeriod;
	type ValidatorIdentities = parachains::ValidatorIdentities<Runtime>;
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	type RewardAttestation = Staking;
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}

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impl parachains::Trait for Runtime {
	type Origin = Origin;
	type Call = Call;
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	type ParachainCurrency = Balances;
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	type Randomness = RandomnessCollectiveFlip;
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	type ActiveParachains = Registrar;
	type Registrar = Registrar;
}

parameter_types! {
	pub const ParathreadDeposit: Balance = 500 * DOLLARS;
	pub const QueueSize: usize = 2;
	pub const MaxRetries: u32 = 3;
}

impl registrar::Trait for Runtime {
	type Event = Event;
	type Origin = Origin;
	type Currency = Balances;
	type ParathreadDeposit = ParathreadDeposit;
	type SwapAux = Slots;
	type QueueSize = QueueSize;
	type MaxRetries = MaxRetries;
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}
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parameter_types!{
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	pub const LeasePeriod: BlockNumber = 100_000;
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	pub const EndingPeriod: BlockNumber = 1000;
}

impl slots::Trait for Runtime {
	type Event = Event;
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	type Currency = Balances;
	type Parachains = Registrar;
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	type LeasePeriod = LeasePeriod;
	type EndingPeriod = EndingPeriod;
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	type Randomness = RandomnessCollectiveFlip;
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}

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parameter_types!{
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	// KUSAMA: for mainnet this should be removed.
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	pub const Prefix: &'static [u8] = b"Pay KSMs to the Kusama account:";
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	// KUSAMA: for mainnet this should be uncommented.
	//pub const Prefix: &'static [u8] = b"Pay DOTs to the Polkadot account:";
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}

impl claims::Trait for Runtime {
	type Event = Event;
	type Currency = Balances;
	type Prefix = Prefix;
}

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impl sudo::Trait for Runtime {
	type Event = Event;
	type Proposal = Call;
}

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parameter_types! {
	pub const ReservationFee: Balance = 1 * DOLLARS;
	pub const MinLength: usize = 3;
	pub const MaxLength: usize = 16;
}

impl nicks::Trait for Runtime {
	type Event = Event;
	type Currency = Balances;
	type ReservationFee = ReservationFee;
	type Slashed = Treasury;
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	type ForceOrigin = collective::EnsureMember<AccountId, CouncilCollective>;
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	type MinLength = MinLength;
	type MaxLength = MaxLength;
}

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construct_runtime!(
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	pub enum Runtime where
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		Block = Block,
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		NodeBlock = primitives::Block,
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		UncheckedExtrinsic = UncheckedExtrinsic
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	{
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		// Basic stuff; balances is uncallable initially.
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		System: system::{Module, Call, Storage, Config, Event},
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		RandomnessCollectiveFlip: randomness_collective_flip::{Module, Storage},
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		// Must be before session.
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		Babe: babe::{Module, Call, Storage, Config, Inherent(Timestamp)},
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		Timestamp: timestamp::{Module, Call, Storage, Inherent},
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		Indices: indices,
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		Balances: balances::{Module, Call, Storage, Config<T>, Event<T>},
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		TransactionPayment: transaction_payment::{Module, Storage},
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		// Consensus support.
		Authorship: authorship::{Module, Call, Storage},
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		Staking: staking::{default, OfflineWorker},
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		Offences: offences::{Module, Call, Storage, Event},
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		Session: session::{Module, Call, Storage, Event, Config<T>},
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		FinalityTracker: finality_tracker::{Module, Call, Inherent},
		Grandpa: grandpa::{Module, Call, Storage, Config, Event},
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		ImOnline: im_online::{Module, Call, Storage, Event<T>, ValidateUnsigned, Config<T>},
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		// Governance stuff; uncallable initially.
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		Democracy: democracy::{Module, Call, Storage, Config, Event<T>},
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		Council: collective::<Instance1>::{Module, Call, Storage, Origin<T>, Event<T>, Config<T>},
		TechnicalCommittee: collective::<Instance2>::{Module, Call, Storage, Origin<T>, Event<T>, Config<T>},
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		ElectionsPhragmen: elections_phragmen::{Module, Call, Storage, Event<T>},
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		TechnicalMembership: membership::<Instance1>::{Module, Call, Storage, Event<T>, Config<T>},
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		Treasury: treasury::{Module, Call, Storage, Event<T>},
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		// Claims. Usable initially.
		Claims: claims::{Module, Call, Storage, Event<T>, Config<T>, ValidateUnsigned},

		// Parachains stuff; slots are disabled (no auctions initially). The rest are safe as they
		// have no public dispatchables.
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		Parachains: parachains::{Module, Call, Storage, Config, Inherent, Origin},
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		Attestations: attestations::{Module, Call, Storage},
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		Slots: slots::{Module, Call, Storage, Event<T>},
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		Registrar: registrar::{Module, Call, Storage, Event, Config<T>},
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		// Sudo. Usable initially.
		// RELEASE: remove this for release build.
		Sudo: sudo,
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		// Simple nicknames module.
		Nicks: nicks::{Module, Call, Storage, Event<T>},
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	}
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);

/// The address format for describing accounts.
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pub type Address = <Indices as StaticLookup>::Source;
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/// Block header type as expected by this runtime.
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pub type Header = generic::Header<BlockNumber, BlakeTwo256>;
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/// Block type as expected by this runtime.
pub type Block = generic::Block<Header, UncheckedExtrinsic>;
/// A Block signed with a Justification
pub type SignedBlock = generic::SignedBlock<Block>;
/// BlockId type as expected by this runtime.
pub type BlockId = generic::BlockId<Block>;
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/// The SignedExtension to the basic transaction logic.
pub type SignedExtra = (
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	// RELEASE: remove this for release build.
	OnlyStakingAndClaims,
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	system::CheckVersion<Runtime>,
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	system::CheckGenesis<Runtime>,
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	system::CheckEra<Runtime>,
	system::CheckNonce<Runtime>,
	system::CheckWeight<Runtime>,
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	transaction_payment::ChargeTransactionPayment::<Runtime>,
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	registrar::LimitParathreadCommits<Runtime>
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);
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/// Unchecked extrinsic type as expected by this runtime.
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pub type UncheckedExtrinsic = generic::UncheckedExtrinsic<Address, Call, Signature, SignedExtra>;
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/// Extrinsic type that has already been checked.
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pub type CheckedExtrinsic = generic::CheckedExtrinsic<AccountId, Nonce, Call>;
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/// Executive: handles dispatch to the various modules.
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pub type Executive = executive::Executive<Runtime, Block, system::ChainContext<Runtime>, Runtime, AllModules>;
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sr_api::impl_runtime_apis! {
	impl sr_api::Core<Block> for Runtime {
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		fn version() -> RuntimeVersion {
			VERSION
		}

		fn execute_block(block: Block) {
			Executive::execute_block(block)
		}
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		fn initialize_block(header: &<Block as BlockT>::Header) {
			Executive::initialize_block(header)
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		}
	}
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	impl sr_api::Metadata<Block> for Runtime {
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		fn metadata() -> OpaqueMetadata {
			Runtime::metadata().into()
		}
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	}

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	impl block_builder_api::BlockBuilder<Block> for Runtime {
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		fn apply_extrinsic(extrinsic: <Block as BlockT>::Extrinsic) -> ApplyResult {
			Executive::apply_extrinsic(extrinsic)
		}

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		fn finalize_block() -> <Block as BlockT>::Header {
			Executive::finalize_block()
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		}
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		fn inherent_extrinsics(data: inherents::InherentData) -> Vec<<Block as BlockT>::Extrinsic> {
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			data.create_extrinsics()
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		}
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		fn check_inherents(
			block: Block,
			data: inherents::InherentData,
		) -> inherents::CheckInherentsResult {
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			data.check_extrinsics(&block)
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		}
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		fn random_seed() -> <Block as BlockT>::Hash {
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			RandomnessCollectiveFlip::random_seed()
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		}
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	}

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	impl tx_pool_api::TaggedTransactionQueue<Block> for Runtime {
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		fn validate_transaction(tx: <Block as BlockT>::Extrinsic) -> TransactionValidity {
			Executive::validate_transaction(tx)
		}
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	}
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	impl offchain_primitives::OffchainWorkerApi<Block> for Runtime {
		fn offchain_worker(number: sr_primitives::traits::NumberFor<Block>) {
			Executive::offchain_worker(number)
		}
	}

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	impl parachain::ParachainHost<Block> for Runtime {
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		fn validators() -> Vec<parachain::ValidatorId> {
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			Parachains::authorities()
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		}
		fn duty_roster() -> parachain::DutyRoster {
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			Parachains::calculate_duty_roster().0
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		}
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		fn active_parachains() -> Vec<(parachain::Id, Option<(parachain::CollatorId, parachain::Retriable)>)> {
			Registrar::active_paras()
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		}
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		fn parachain_status(id: parachain::Id) -> Option<parachain::Status> {
			Parachains::parachain_status(&id)
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		}
		fn parachain_code(id: parachain::Id) -> Option<Vec<u8>> {
			Parachains::parachain_code(&id)
		}
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		fn ingress(to: parachain::Id, since: Option<BlockNumber>)
			-> Option<parachain::StructuredUnroutedIngress>
		{
			Parachains::ingress(to, since).map(parachain::StructuredUnroutedIngress)
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		}
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	}
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	impl fg_primitives::GrandpaApi<Block> for Runtime {
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		fn grandpa_authorities() -> Vec<(GrandpaId, u64)> {
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			Grandpa::grandpa_authorities()
		}
	}

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	impl babe_primitives::BabeApi<Block> for Runtime {
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		fn configuration() -> babe_primitives::BabeConfiguration {
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			// The choice of `c` parameter (where `1 - c` represents the
			// probability of a slot being empty), is done in accordance to the
			// slot duration and expected target block time, for safely
			// resisting network delays of maximum two seconds.
			// <https://research.web3.foundation/en/latest/polkadot/BABE/Babe/#6-practical-results>
			babe_primitives::BabeConfiguration {
				slot_duration: Babe::slot_duration(),
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				epoch_length: EpochDuration::get(),
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				c: PRIMARY_PROBABILITY,
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				genesis_authorities: Babe::authorities(),
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				randomness: Babe::randomness(),
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				secondary_slots: true,
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			}
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		}
	}

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	impl substrate_session::SessionKeys<Block> for Runtime {
		fn generate_session_keys(seed: Option<Vec<u8>>) -> Vec<u8> {
			SessionKeys::generate(seed)
		}
	}
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	impl system_rpc_runtime_api::AccountNonceApi<Block, AccountId, Nonce> for Runtime {
		fn account_nonce(account: AccountId) -> Nonce {
			System::account_nonce(account)
		}
	}
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	impl paint_transaction_payment_rpc_runtime_api::TransactionPaymentApi<
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		Block,
		Balance,
		UncheckedExtrinsic,
	> for Runtime {
		fn query_info(uxt: UncheckedExtrinsic, len: u32) -> RuntimeDispatchInfo<Balance> {
			TransactionPayment::query_info(uxt, len)
		}
	}
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}