lib.rs

			>,
			key_owner_proof: fg_primitives::OpaqueKeyOwnershipProof,
		) -> Option<()> {
			let key_owner_proof = key_owner_proof.decode()?;

			Grandpa::submit_unsigned_equivocation_report(
				equivocation_proof,
				key_owner_proof,
			)
		}

		fn generate_key_ownership_proof(
			_set_id: fg_primitives::SetId,
			authority_id: GrandpaId,
		) -> Option<fg_primitives::OpaqueKeyOwnershipProof> {
			use codec::Encode;

			Historical::prove((fg_primitives::KEY_TYPE, authority_id))
				.map(|p| p.encode())
				.map(fg_primitives::OpaqueKeyOwnershipProof::new)
		}
	}

	impl sp_consensus_babe::BabeApi<Block> for Runtime {
		fn configuration() -> sp_consensus_babe::BabeGenesisConfiguration {
			// 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>
			sp_consensus_babe::BabeGenesisConfiguration {
				slot_duration: Babe::slot_duration(),
				epoch_length: EpochDuration::get(),
				c: PRIMARY_PROBABILITY,
				genesis_authorities: Babe::authorities(),
				randomness: Babe::randomness(),
				allowed_slots: sp_consensus_babe::AllowedSlots::PrimaryAndSecondaryPlainSlots,
			}
		}

		fn current_epoch_start() -> sp_consensus_babe::SlotNumber {
			Babe::current_epoch_start()
		}

		fn generate_key_ownership_proof(
			_slot_number: sp_consensus_babe::SlotNumber,
			authority_id: sp_consensus_babe::AuthorityId,
		) -> Option<sp_consensus_babe::OpaqueKeyOwnershipProof> {
			use codec::Encode;

			Historical::prove((sp_consensus_babe::KEY_TYPE, authority_id))
				.map(|p| p.encode())
				.map(sp_consensus_babe::OpaqueKeyOwnershipProof::new)
		}

		fn submit_report_equivocation_unsigned_extrinsic(
			equivocation_proof: sp_consensus_babe::EquivocationProof<<Block as BlockT>::Header>,
			key_owner_proof: sp_consensus_babe::OpaqueKeyOwnershipProof,
		) -> Option<()> {
			let key_owner_proof = key_owner_proof.decode()?;

			Babe::submit_unsigned_equivocation_report(
				equivocation_proof,
				key_owner_proof,
			)
		}
	}

	impl sp_authority_discovery::AuthorityDiscoveryApi<Block> for Runtime {
		fn authorities() -> Vec<AuthorityDiscoveryId> {
			AuthorityDiscovery::authorities()
		}
	}

	impl frame_system_rpc_runtime_api::AccountNonceApi<Block, AccountId, Index> for Runtime {
		fn account_nonce(account: AccountId) -> Index {
			System::account_nonce(account)
		}
	}

	impl pallet_contracts_rpc_runtime_api::ContractsApi<Block, AccountId, Balance, BlockNumber>
		for Runtime
	{
		fn call(
			origin: AccountId,
			dest: AccountId,
			value: Balance,
			gas_limit: u64,
			input_data: Vec<u8>,
		) -> ContractExecResult {
			let (exec_result, gas_consumed) =
				Contracts::bare_call(origin, dest.into(), value, gas_limit, input_data);
			match exec_result {
				Ok(v) => ContractExecResult::Success {
					flags: v.flags.bits(),
					data: v.data,
					gas_consumed: gas_consumed,
				},
				Err(_) => ContractExecResult::Error,
			}
		}

		fn get_storage(
			address: AccountId,
			key: [u8; 32],
		) -> pallet_contracts_primitives::GetStorageResult {
			Contracts::get_storage(address, key)
		}

		fn rent_projection(
			address: AccountId,
		) -> pallet_contracts_primitives::RentProjectionResult<BlockNumber> {
			Contracts::rent_projection(address)
		}
	}

	impl pallet_transaction_payment_rpc_runtime_api::TransactionPaymentApi<
		Block,
		Balance,
	> for Runtime {
		fn query_info(uxt: <Block as BlockT>::Extrinsic, len: u32) -> RuntimeDispatchInfo<Balance> {
			TransactionPayment::query_info(uxt, len)
		}
	}

	impl sp_session::SessionKeys<Block> for Runtime {
		fn generate_session_keys(seed: Option<Vec<u8>>) -> Vec<u8> {
			SessionKeys::generate(seed)
		}

		fn decode_session_keys(
			encoded: Vec<u8>,
		) -> Option<Vec<(Vec<u8>, KeyTypeId)>> {
			SessionKeys::decode_into_raw_public_keys(&encoded)
		}
	}

	#[cfg(feature = "runtime-benchmarks")]
	impl frame_benchmarking::Benchmark<Block> for Runtime {
		fn dispatch_benchmark(
			config: frame_benchmarking::BenchmarkConfig
		) -> Result<Vec<frame_benchmarking::BenchmarkBatch>, sp_runtime::RuntimeString> {
			use frame_benchmarking::{Benchmarking, BenchmarkBatch, add_benchmark, TrackedStorageKey};
			// Trying to add benchmarks directly to the Session Pallet caused cyclic dependency issues.
			// To get around that, we separated the Session benchmarks into its own crate, which is why
			// we need these two lines below.
			use pallet_session_benchmarking::Module as SessionBench;
			use pallet_offences_benchmarking::Module as OffencesBench;
			use frame_system_benchmarking::Module as SystemBench;

			impl pallet_session_benchmarking::Trait for Runtime {}
			impl pallet_offences_benchmarking::Trait for Runtime {}
			impl frame_system_benchmarking::Trait for Runtime {}

			let whitelist: Vec<TrackedStorageKey> = vec![
				// Block Number
				hex_literal::hex!("26aa394eea5630e07c48ae0c9558cef702a5c1b19ab7a04f536c519aca4983ac").to_vec().into(),
				// Total Issuance
				hex_literal::hex!("c2261276cc9d1f8598ea4b6a74b15c2f57c875e4cff74148e4628f264b974c80").to_vec().into(),
				// Execution Phase
				hex_literal::hex!("26aa394eea5630e07c48ae0c9558cef7ff553b5a9862a516939d82b3d3d8661a").to_vec().into(),
				// Event Count
				hex_literal::hex!("26aa394eea5630e07c48ae0c9558cef70a98fdbe9ce6c55837576c60c7af3850").to_vec().into(),
				// System Events
				hex_literal::hex!("26aa394eea5630e07c48ae0c9558cef780d41e5e16056765bc8461851072c9d7").to_vec().into(),
				// Treasury Account
				hex_literal::hex!("26aa394eea5630e07c48ae0c9558cef7b99d880ec681799c0cf30e8886371da95ecffd7b6c0f78751baa9d281e0bfa3a6d6f646c70792f74727372790000000000000000000000000000000000000000").to_vec().into(),
			];

			let mut batches = Vec::<BenchmarkBatch>::new();
			let params = (&config, &whitelist);

			add_benchmark!(params, batches, pallet_babe, Babe);
			add_benchmark!(params, batches, pallet_balances, Balances);
			add_benchmark!(params, batches, pallet_collective, Council);
			add_benchmark!(params, batches, pallet_contracts, Contracts);
			add_benchmark!(params, batches, pallet_democracy, Democracy);
			add_benchmark!(params, batches, pallet_elections_phragmen, Elections);
			add_benchmark!(params, batches, pallet_grandpa, Grandpa);
			add_benchmark!(params, batches, pallet_identity, Identity);
			add_benchmark!(params, batches, pallet_im_online, ImOnline);
			add_benchmark!(params, batches, pallet_indices, Indices);
			add_benchmark!(params, batches, pallet_multisig, Multisig);
			add_benchmark!(params, batches, pallet_offences, OffencesBench::<Runtime>);
			add_benchmark!(params, batches, pallet_proxy, Proxy);
			add_benchmark!(params, batches, pallet_scheduler, Scheduler);
			add_benchmark!(params, batches, pallet_session, SessionBench::<Runtime>);
			add_benchmark!(params, batches, pallet_staking, Staking);
			add_benchmark!(params, batches, frame_system, SystemBench::<Runtime>);
			add_benchmark!(params, batches, pallet_timestamp, Timestamp);
			add_benchmark!(params, batches, pallet_treasury, Treasury);
			add_benchmark!(params, batches, pallet_utility, Utility);
			add_benchmark!(params, batches, pallet_vesting, Vesting);

			if batches.is_empty() { return Err("Benchmark not found for this pallet.".into()) }
			Ok(batches)
		}
	}
}

#[cfg(test)]
mod tests {
	use super::*;
	use frame_system::offchain::CreateSignedTransaction;

	#[test]
	fn validate_transaction_submitter_bounds() {
		fn is_submit_signed_transaction<T>() where
			T: CreateSignedTransaction<Call>,
		{}

		is_submit_signed_transaction::<Runtime>();
	}
}