Combination of paritytech/polkadot#7005, its addon PR
paritytech/polkadot#7585 and its companion paritytech/cumulus#2433.

This PR introduces a new XcmFeesToAccount struct which implements the
`FeeManager` trait, and assigns this struct as the `FeeManager` in the
XCM config for all runtimes.

The struct simply deposits all fees handled by the XCM executor to a
specified account. In all runtimes, the specified account is configured
as the treasury account.

XCM __delivery__ fees are now being introduced (unless the root origin
is sending a message to a system parachain on behalf of the originating
chain).

# Note for reviewers

Most file changes are tests that had to be modified to account for the
new fees.
Main changes are in:
- cumulus/pallets/xcmp-queue/src/lib.rs <- To make it track the delivery
fees exponential factor
- polkadot/xcm/xcm-builder/src/fee_handling.rs <- Added. Has the
FeeManager implementation
- All runtime xcm_config files <- To add the FeeManager to the XCM
configuration

# Important note

After this change, instructions that create and send a new XCM (Query*,
Report*, ExportMessage, InitiateReserveWithdraw, InitiateTeleport,
DepositReserveAsset, TransferReserveAsset, LockAsset and RequestUnlock)
will require the corresponding origin account in the origin register to
pay for transport delivery fees, and the onward message will fail to be
sent if the origin account does not have the required amount. This
delivery fee is on top of what we already collect as tx fees in
pallet-xcm and XCM BuyExecution fees!

Wallet UIs that want to expose the new delivery fee can do so using the
formula:

```
delivery_fee_factor * (base_fee + encoded_msg_len * per_byte_fee)
```

where the delivery fee factor can be obtained from the corresponding
pallet based on which transport you are using (UMP, HRMP or bridges),
the base fee is a constant, the encoded message length from the message
itself and the per byte fee is the same as the configured per byte fee
for txs (i.e. `TransactionByteFee`).

---------

Co-authored-by: Branislav Kontur <[email protected]>
Co-authored-by: joe petrowski <[email protected]>
Co-authored-by: Giles Cope <[email protected]>
Co-authored-by: command-bot <>
Co-authored-by: Francisco Aguirre <[email protected]>
Co-authored-by: Liam Aharon <[email protected]>
Co-authored-by: Kian Paimani <[email protected]>

cumulus: add asset-hub-rococo runtime based on asset-hub-kusama and add asset-bridging support to it (#1215)

This commit adds Rococo Asset Hub dedicated runtime so we can test new
features here, before merging them in Kusama Asset Hub.
Also adds one such feature: asset transfer over bridge (Rococo AssetHub
<> Wococo AssetHub)

- clone `asset-hub-kusama-runtime` -> `asset-hub-rococo-runtime`
- make it use Rococo primitives, names, assets, constants, etc
- add asset-transfer-over-bridge support to Rococo AssetHub <> Wococo
AssetHub

Fixes #1128

---------

Co-authored-by: Branislav Kontur <[email protected]>
Co-authored-by: joe petrowski <[email protected]>
Co-authored-by: Francisco Aguirre <[email protected]>

Make System Parachain trusted Teleporters of each other.

Migration of https://github.com/paritytech/cumulus/pull/2842

---------

Co-authored-by: command-bot <>
Co-authored-by: joe petrowski <[email protected]>

- Removal of Arkworks unit tests. These tests were just testing the
arkworks upstream implementation which should be assumed correct. This
is not the place to test well known dependencies.
- Removal of some over-engineering. We just store the calls to Arkworks
in one file. Per-curve sources are not required.
- Docs formatting

---

I also took the opportunity to bump the `bandersnatch-vrfs` crate
revision internally providing some new shiny stuff.

closes #695

Could potentially be helpful to preserving caches when applicable, as
discussed in #685

kusama address: FvpsvV1GQAAbwqX6oyRjemgdKV11QU5bXsMg9xsonD1FLGK

# Description

Upgrades `macro_magic` to 0.4.3, which introduces the ability to have
`export_tokens` use the same name as the underlying item for its
auto-generated macro name. Ultimately this will allow for better dev ux
in our derive_impl feature.

Original PR https://github.com/paritytech/substrate/pull/14746

---

## Fixing stall

### Introduction
I experienced an apparent stall downloading state from
`https://rococo-try-runtime-node.parity-chains.parity.io:443` which was
having networking difficulties only responding to my JSONRPC requests
with 50-200KB/s of bandwidth.

This PR fixes the issue causing the stall, and generally improves
performance remote-ext when it downloads state by greatly reducing the
chances of a timeout occuring.

### Description
Introduces a new `REQUEST_DURATION_TARGET` constant and modifies
`get_storage_data_dynamic_batch_size` to

- Increase or decrease the batch size of the next request depending on
whether the elapsed time of the last request was gt or lt the target
- Reset the batch size to 1 if the request times out

This fixes an issue on slow connections that can otherwise cause
multiple timeouts and a stalled download when:

1. The batch size increases rapidly as remote-ext downloads keys with
small associated storage values
2. remote-ext tries to process a large series of subsequent keys all
with extremely large associated storage values (Rococo has a series of
keys 1-5MB large)
3. The huge storage values download for 5 minutes until the request
times out
4. The partially downloaded keys are thrown out and remote-ext tries
again with a smaller batch size, but the batch size is still far too
large and takes 5 minutes to be reduced again
5. The download will be essentially stalled for many hours while the
above step cycles


After this PR, the request size will

- Not grow as large to begin with, as it is regulated downwards as the
request duration exceeds the target
- Drop immediately to 1 if the request times out. A timeout indicates
the keys next in line to download have extremely large storage values
compared to previously downloaded keys, and we need to reset the batch
size to figure out what our new ideal batch size is. By not resetting
down to 1, we risk the next request timing out again.

## Reducing memory

As suggested by @bkchr, I adjusted `get_storage_data_dynamic_batch_size`
from being recursive to a loop which allows removing a bunch of clones
that were chewing through a lot of memory. I noticed actually it was
using up to 50GB swap previously when downloading Polkadot keys on a
slow connection, because it needed to recurse and clone a lot.

After this change it uses only ~1.5GB memory.

Adds a warning to FRAME pallets when a function argument that starts
with `_` is used in the weight formula.
This is in most cases an error since the weight witness needs to be
checked.

Example:

```rust
#[pallet::call_index(0)]
#[pallet::weight(T::SystemWeightInfo::remark(_remark.len() as u32))]
pub fn remark(_origin: OriginFor<T>, _remark: Vec<u8>) -> DispatchResultWithPostInfo {
	Ok(().into())
}
```

Produces this warning:

```pre
warning: use of deprecated constant `pallet::warnings::UncheckedWeightWitness_0::_w`: 
                 It is deprecated to not check weight witness data.
                 Please instead ensure that all witness data for weight calculation is checked before usage.
         
                 For more info see:
                     <https://github.com/paritytech/polkadot-sdk/pull/1818>
   --> substrate/frame/system/src/lib.rs:424:40
    |
424 |         pub fn remark(_origin: OriginFor<T>, _remark: Vec<u8>) -> DispatchResultWithPostInfo {
    |                                              ^^^^^^^
    |
    = note: `#[warn(deprecated)]` on by default
```

Can be suppressed like this, since in this case it is legit:

```rust
#[pallet::call_index(0)]
#[pallet::weight(T::SystemWeightInfo::remark(remark.len() as u32))]
pub fn remark(_origin: OriginFor<T>, remark: Vec<u8>) -> DispatchResultWithPostInfo {
	let _ = remark; // We dont need to check the weight witness.
	Ok(().into())
}
```

Changes:
- Add warning on uncheded weight witness
- Respect `subkeys` limit in `System::kill_prefix`
- Fix HRMP pallet and other warnings
- Update`proc_macro_warning` dependency
- Delete random folder `substrate/src/src` 🙈

 
- Adding Prdoc

---------

Signed-off-by: Oliver Tale-Yazdi <[email protected]>
Co-authored-by: joe petrowski <[email protected]>

See #1345, <https://github.com/paritytech/substrate/pull/14207>.

This adds all the necessary mixnet components, and puts them together in
the "kitchen-sink" node/runtime. The components added are:

- A pallet (`frame/mixnet`). This is responsible for determining the
current mixnet session and phase, and the mixnodes to use in each
session. It provides a function that validators can call to register a
mixnode for the next session. The logic of this pallet is very similar
to that of the `im-online` pallet.
- A service (`client/mixnet`). This implements the core mixnet logic,
building on the `mixnet` crate. The service communicates with other
nodes using notifications sent over the "mixnet" protocol.
- An RPC interface. This currently only supports sending transactions
over the mixnet.

---------

Co-authored-by: David Emett <[email protected]>
Co-authored-by: Javier Viola <[email protected]>

### Summary 

This PR introduces new dispatchables to the treasury pallet, allowing
spends of various asset types. The enhanced features of the treasury
pallet, in conjunction with the asset-rate pallet, are set up and
enabled for Westend and Rococo.

### Westend and Rococo runtimes.

Polkadot/Kusams/Rococo Treasury can accept proposals for `spends` of
various asset kinds by specifying the asset's location and ID.

#### Treasury Instance New Dispatchables:
- `spend(AssetKind, AssetBalance, Beneficiary, Option<ValidFrom>)` -
propose and approve a spend;
- `payout(SpendIndex)` - payout an approved spend or retry a failed
payout
- `check_payment(SpendIndex)` - check the status of a payout;
- `void_spend(SpendIndex)` - void previously approved spend;
> existing spend dispatchable renamed to spend_local

in this context, the `AssetKind` parameter contains the asset's location
and it's corresponding `asset_id`, for example:
`USDT` on `AssetHub`,
``` rust
location = MultiLocation(0, X1(Parachain(1000)))
asset_id = MultiLocation(0, X2(PalletInstance(50), GeneralIndex(1984)))
```

the `Beneficiary` parameter is a `MultiLocation` in the context of the
asset's location, for example
``` rust
// the Fellowship salary pallet's location / account
FellowshipSalaryPallet = MultiLocation(1, X2(Parachain(1001), PalletInstance(64)))
// or custom `AccountId`
Alice = MultiLocation(0, AccountId32(network: None, id: [1,...]))
```

the `AssetBalance` represents the amount of the `AssetKind` to be
transferred to the `Beneficiary`. For permission checks, the asset
amount is converted to the native amount and compared against the
maximum spendable amount determined by the commanding spend origin.

the `spend` dispatchable allows for batching spends with different
`ValidFrom` arguments, enabling milestone-based spending. If the
expectations tied to an approved spend are not met, it is possible to
void the spend later using the `void_spend` dispatchable.

Asset Rate Pallet provides the conversion rate from the `AssetKind` to
the native balance.

#### Asset Rate Instance Dispatchables:
- `create(AssetKind, Rate)` - initialize a conversion rate to the native
balance for the given asset
- `update(AssetKind, Rate)` - update the conversion rate to the native
balance for the given asset
- `remove(AssetKind)` - remove an existing conversion rate to the native
balance for the given asset

the pallet's dispatchables can be executed by the Root or Treasurer
origins.

### Treasury Pallet

Treasury Pallet can accept proposals for `spends` of various asset kinds
and pay them out through the implementation of the `Pay` trait.

New Dispatchables:
- `spend(Config::AssetKind, AssetBalance, Config::Beneficiary,
Option<ValidFrom>)` - propose and approve a spend;
- `payout(SpendIndex)` - payout an approved spend or retry a failed
payout;
- `check_payment(SpendIndex)` - check the status of a payout;
- `void_spend(SpendIndex)` - void previously approved spend;
> existing spend dispatchable renamed to spend_local

The parameters' types of the `spend` dispatchable exposed via the
pallet's `Config` and allows to propose and accept a spend of a certain
amount.

An approved spend can be claimed via the `payout` within the
`Config::SpendPeriod`. Clients provide an implementation of the `Pay`
trait which can pay an asset of the `AssetKind` to the `Beneficiary` in
`AssetBalance` units.

The implementation of the Pay trait might not have an immediate final
payment status, for example if implemented over `XCM` and the actual
transfer happens on a remote chain.

The `check_status` dispatchable can be executed to update the spend's
payment state and retry the `payout` if the payment has failed.

---------

Co-authored-by: joe petrowski <[email protected]>
Co-authored-by: command-bot <>

Bumps the known_good_semver group with 1 update:
[syn](https://github.com/dtolnay/syn).

<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
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<blockquote>
<h2>2.0.38</h2>
<ul>
<li>Fix <em>&quot;method 'peek' has an incompatible type for
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href="https://redirect.github.com/dtolnay/syn/issues/1518">#1518</a>,
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Closes https://github.com/paritytech/polkadot-sdk/issues/1450

Bringing back the Substrate crate that was forgotten in the monorepo
import 😅

.
It is a doc-only crate. Version number is set to `1.0.0` and publishing
is enabled (so that we can link to docs.rs).

---------

Signed-off-by: Oliver Tale-Yazdi <[email protected]>
Co-authored-by: Bastian Köcher <[email protected]>
Co-authored-by: Kian Paimani <[email protected]>

Bumps the known_good_semver group with 1 update:
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Applied changes from the [User Update
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diverging in the node side where service.rs is different for
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Since the hash rules of this part of the `pallet_prefix/storage_prefix`
are always fixed, we can put the runtime calculation into compile time.

---
polkadot address: 15ouFh2SHpGbHtDPsJ6cXQfes9Cx1gEFnJJsJVqPGzBSTudr

---------

Co-authored-by: Juan <[email protected]>
Co-authored-by: command-bot <>
Co-authored-by: Oliver Tale-Yazdi <[email protected]>

This pull request is removing the Kusama and Polkadot runtime crates. As
still some crates dependent on the runtime crates, this pull request is
doing some more changes.

- It removes the `hostperfcheck` CLI command. This CLI command could
compare the current node against the standard hardware by doing some
checks. Later we added the hardware benchmark feature to Substrate. This
hardware benchmark is running on every node startup and prints a warning
if the current node is too slow. This makes this CLI command a duplicate
that was also depending on the kusama runtime.

- The pull request is removing the emulated integration tests that were
requiring the Kusama or Polkadot runtime crates.

Move request-response handling from `ChainSync` to `SyncingEngine` as
part of [Sync
2.0](https://github.com/paritytech/polkadot-sdk/issues/534) refactoring
aimed at making `ChainSync` a pure state machine.

Resolves https://github.com/paritytech/polkadot-sdk/issues/502.

---------

Co-authored-by: Aaro Altonen <[email protected]>
Co-authored-by: Bastian Köcher <[email protected]>

Migrating [PR from the archived polkadot
repo](https://github.com/paritytech/polkadot/pull/7272)

As per
https://github.com/paritytech/polkadot/pull/7272#issuecomment-1559240466,
the changes in this MR include the following pallets into [x] Rococo and
[x] Westend runtimes:

    pallet_conviction_voting
    pallet_referenda
    pallet_ranked_collective
    pallet_custom_origins
    pallet_whitelist

And only for westend-runtime:

    pallet_treasury

Following [Kusama runtime
config](https://github.com/paritytech/polkadot/tree/dbae30efe080a1d41fe54ef4da8af47614c9ca93/runtime/kusama/src)
as a baseline.

Benchmarking of the following pallets done for both Rococo and Westend:

    pallet_conviction_voting
    pallet_referenda
    pallet_ranked_collective (only on Rococo)
    pallet_whitelist

And only for Westend:

    pallet_treasury

Removed Gov1 from Rococo as in
https://github.com/paritytech/polkadot/pull/6701

Rococo Gov1 storage will be cleaned in a different PR - [issue ](https://github.com/paritytech/polkadot-sdk/issues/1618)

---------

Co-authored-by: Giles Cope <[email protected]>

This PR implements [`GenesisBuilder`
API](https://github.com/paritytech/polkadot-sdk/blob/a414ea75

/substrate/primitives/genesis-builder/src/lib.rs#L38)
for all the runtimes in polkadot repo.

Step towards: paritytech/polkadot-sdk#25

---------

Co-authored-by: ordian <[email protected]>

Bumps [directories](https://github.com/soc/directories-rs) from 4.0.1 to
5.0.1.
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Bumps [aes-gcm](https://github.com/RustCrypto/AEADs) from 0.10.2 to
0.10.3.
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The Ambassador Program on Polkadot Collectives Parachain

The Polkadot Ambassador Program has existed for a while; more
information can be found
[here](https://wiki.polkadot.network/docs/ambassadors).
In this PR, the program is being brought on chain.

### On Chain Structure
The on-chain program consists of nine ranks, divided into four
categories ([full
list](https://github.com/paritytech/cumulus/blob/c238fb26b75569a11abb57437fd14acd26e05f18/parachains/runtimes/collectives/collectives-polkadot/src/ambassador/mod.rs#L52)):
- Ambassadors (1-2 tiers)
- Senior Ambassadors (3-4 tiers)
- Head Ambassadors (5-7 tiers)
- Master Ambassadors (8-9 tiers)

Each rank has a corresponding `Origin` (e.g., `HeadAmbassadorsTier5` -
[full
list](https://github.com/paritytech/cumulus/blob/c238fb26b75569a11abb57437fd14acd26e05f18/parachains/runtimes/collectives/collectives-polkadot/src/ambassador/origins.rs#L35)),
which represents the collective voice of members of that rank and above.

### Referendum

The `AmbassadorReferenda` instance of [referenda
pallet](https://docs.rs/pallet-referenda/latest/pallet_referenda/)
consists of [nine
tracks](https://github.com/paritytech/cumulus/blob/c238fb26b75569a11abb57437fd14acd26e05f18/parachains/runtimes/collectives/collectives-polkadot/src/ambassador/tracks.rs#L51),
each corresponding to an `Origin`. A referendum taken on `senior
ambassador tier 4` track invites all members from rank 4 or above to
vote and commands `SeniorAmbassadors` `Origin`. Every member gets one
vote plus an additional vote for every excess rank. The referendum
proposal can be submitted by any member of a senior rank or above.

### Membership Management

Initial members will be brought on chain via migration, with subsequent
member management handled through the `AmbassadorCollective` instance of
[ranked collective
pallet](https://docs.rs/pallet-ranked-collective/latest/pallet_ranked_collective/).
Both `Root` and `FellowshipAdmin` `Origins`, commanded via public
Polkadot referendum, can promote or demote members to and from any rank.
Members themselves also have the power to promote or demote via its
referendum, with a senior member vote by the rank two above the new /
current rank - [full
configuration](https://github.com/paritytech/cumulus/blob/9ab6aa47063d7e8b67ddc10d9c136037f99c03a3/parachains/runtimes/collectives/collectives-polkadot/src/ambassador/mod.rs#L67).

### Content Management

The program's on-chain content is managed via the collectives content
pallet, allowing for setting its charter and making announcements. The
voice of head ambassadors have the authority to set the charter, while
announcements can be made by any senior rank member or through a
referendum among all members.

### Additional Functionality

The `AmbassadorCore` instance of [core fellowship
pallet](https://docs.rs/pallet-core-fellowship/latest/pallet_core_fellowship/)
decorates the ranked collectives pallet with features like salary
determination, activity/passivity registration, and the handling of
promotion and demotion periods. While the usage of this pallet is
optional in the first version, future updates will make it the exclusive
method for induction/promotion.

Periodic salaries in USDt, payable on Asset Hub, are introduced through
the [salary
pallet](https://docs.rs/pallet-salary/latest/pallet_salary/). This
requires induction into the ambassador core pallet.

Please for more information on the pallets' functionality refer to their
documentations.

### Next Steps:
- Migrate to seed the program members
- Mint ambassador NFT badges on Asset Hub when promoting
- Treasury pallet instance for the Ambassador Program

---------

Co-authored-by: Kian Paimani <[email protected]>
Co-authored-by: joe petrowski <[email protected]>

Upgrades to docify v0.2.4 which adds support for exporting trait and
impl items in addition to regular items. This fixes @liamaharon's
https://github.com/sam0x17/docify/issues/9 issue.

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https://github.com/sam0x17/docify/releases/tag/v0.2.4

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Bumps the known_good_semver group with 2 updates:
[clap](https://github.com/clap-rs/clap) and
[syn](https://github.com/dtolnay/syn).

Updates `clap` from 4.4.3 to 4.4.4
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Updates `syn` from 2.0.36 to 2.0.37
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Refactors availability-recovery strategies to allow for easily adding
new hotpaths and failover mechanisms.

The new interface allows for chaining multiple `RecoveryStrategy`-es
together, to cleanly express the relationship between them and share
state and code where neccessary/possible:

This was done in order to aid in implementing new hotpaths like
[systematic chunks
recovery](https://github.com/paritytech/polkadot-sdk/issues/598) and
[fetching from approval
checkers](https://github.com/paritytech/polkadot-sdk/issues/575).

Thanks to this design, intermediate state can be shared between the
strategies. For example, if the systematic chunks recovery retrieved
less than the needed amount of chunks, pass them over to the next
FetchChunks strategy, which will only need to recover the remaining
number of chunks.

Draft example of how a systematic chunk recovery strategy would look:
https://github.com/paritytech/polkadot-sdk/commit/667d870bdf1470525d66c13929d5eac7249dd995
(notice how easy it was to add and reuse code)

Note that this PR doesn't itself add any new strategy, it should fully
preserve backwards compatiblity in terms of functionality. Follow-up PRs
to add new strategies will come.

This pull request removes the Polkadot and Kusama native runtime from
the polkadot node. This brings some implications with it:

There are no more kusama/polkadot-dev chain specs available. We will
need to write some tooling in the fellowship repo to provide them
easily.

The try-runtime job for polkadot & kusama is not available anymore as we
don't have the dev chain specs anymore.

Certain benchmarking commands will also not work until we migrate them
to use a runtime api.

Some crates in utils are still depending on the polkadot/kusama native
runtime that will also need to be fixed.

Port of: https://github.com/paritytech/polkadot/pull/7467

Partially fixes #103 

This PR removes instances of "free for all" collation in the `glutton`,
`shell`, and `seedling` runtimes and replaces them with Aura instances.
Aura is configured without a session manager, so the initial authority
set cannot be changed later on.

---------

Signed-off-by: georgepisaltu <[email protected]>

Bumps the known_good_semver group with 1 update:
[syn](https://github.com/dtolnay/syn).

<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/dtolnay/syn/releases">syn's
releases</a>.</em></p>
<blockquote>
<h2>2.0.36</h2>
<ul>
<li>Restore compatibility with
<code>--generate-link-to-definition</code> documentation builds (<a
href="https://redirect.github.com/dtolnay/syn/issues/1514">#1514</a>)</li>
</ul>
<h2>2.0.35</h2>
<ul>
<li>Make rust-analyzer produce preferred brackets for invocations of
<code>Token!</code> macro (<a
href="https://redirect.github.com/dtolnay/syn/issues/1510">#1510</a>, <a
href="https://redirect.github.com/dtolnay/syn/issues/1512">#1512</a>)</li>
</ul>
<h2>2.0.34</h2>
<ul>
<li>Documentation improvements</li>
</ul>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/dtolnay/syn/commit/ef6476c76431da488720c8ee3fdfff57a199a848"><code>ef6476c</code></a>
Release 2.0.36</li>
<li><a
href="https://github.com/dtolnay/syn/commit/6ae1a9756a128f18341a4cba56772ee1715a06e2"><code>6ae1a97</code></a>
Merge pull request <a
href="https://redirect.github.com/dtolnay/syn/issues/1514">#1514</a>
from dtolnay/pubnotdoc</li>
<li><a
href="https://github.com/dtolnay/syn/commit/7bfef4b2befee954bc002724c8331612fed3d47f"><code>7bfef4b</code></a>
Work around doc breakage in generate-link-to-definition mode</li>
<li><a
href="https://github.com/dtolnay/syn/commit/ce360ff4b1695311dcc569ade1fc9ff1ff6ac4d9"><code>ce360ff</code></a>
Release 2.0.35</li>
<li><a
href="https://github.com/dtolnay/syn/commit/23736bdc48a964286ea032ea5c172574239119ef"><code>23736bd</code></a>
Merge pull request <a
href="https://redirect.github.com/dtolnay/syn/issues/1512">#1512</a>
from dtolnay/tokendoc</li>
<li><a
href="https://github.com/dtolnay/syn/commit/6f6b0040d420abfda0b5504dc13b7c76319ebccd"><code>6f6b004</code></a>
Improve docs of Token! macro</li>
<li><a
href="https://github.com/dtolnay/syn/commit/319433e12a0e13d1b549a189ae1ce1d3293a7ea9"><code>319433e</code></a>
Merge pull request <a
href="https://redirect.github.com/dtolnay/syn/issues/1510">#1510</a>
from ModProg/patch-3</li>
<li><a
href="https://github.com/dtolnay/syn/commit/975ce0b7c4319166ff0ae5ea839d923410615dae"><code>975ce0b</code></a>
Release 2.0.34</li>
<li><a
href="https://github.com/dtolnay/syn/commit/858e578d1e3aed3d7ac965a59b5044a1ca4eadf2"><code>858e578</code></a>
Merge pull request <a
href="https://redirect.github.com/dtolnay/syn/issues/1511">#1511</a>
from dtolnay/notdoc</li>
<li><a
href="https://github.com/dtolnay/syn/commit/1b0d7f807862cb36256848a9f55a81a9aca41976"><code>1b0d7f8</code></a>
Add cfg(not(doc)) to doc(hidden) functions</li>
<li>Additional commits viewable in <a
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This PR adds support for fetching the closest merkle value of some key.


Builds on top of
- https://github.com/paritytech/trie/pull/199

Migrates https://github.com/paritytech/substrate/pull/14818 to the
monorepo.
Closes: https://github.com/paritytech/substrate/issues/14550
Closes: https://github.com/paritytech/polkadot-sdk/issues/1506

// @paritytech/subxt-team

---------

Signed-off-by: Alexandru Vasile <[email protected]>
Co-authored-by: Sebastian Kunert <[email protected]>

This PR improves the docs for the Timestamp pallet by following our
[Documentation
Guidelines](https://github.com/paritytech/polkadot-sdk/blob/master/docs/DOCUMENTATION_GUIDELINE.md)
more closely.

---------

Co-authored-by: Juan <[email protected]>
Co-authored-by: Francisco Aguirre <[email protected]>

This PR backports version bumps for `polkadot` and `polkadot-parachain`
from the v1.1.0 release branch

---------

Co-authored-by: Mara Broda <[email protected]>

Removal of verbatim duplication of BABE's `Epoch` struct in the client.

I think is better to have one single definition and wrap the primitive
`Epoch` in a newtype (required because we need to implement the `Epoch`
trait).

Bumps the known_good_semver group with 2 updates:
[serde_json](https://github.com/serde-rs/json) and
[syn](https://github.com/dtolnay/syn).

Updates `serde_json` from 1.0.106 to 1.0.107
<details>
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<blockquote>
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Release 1.0.107</li>
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<li><a
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IntoDeserializer for &amp;RawValue</li>
<li><a
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Merge pull request <a
href="https://redirect.github.com/serde-rs/json/issues/1072">#1072</a>
from dtolnay/rawvalue</li>
<li><a
href="https://github.com/serde-rs/json/commit/fe30766ae5c79bfb670b2de1c5596e6e11e22f8c"><code>fe30766</code></a>
Support deserializing from &amp;RawValue</li>
<li><a
href="https://github.com/serde-rs/json/commit/2c22077f0e2decfda5cdfd5821c5f9547d584b76"><code>2c22077</code></a>
Merge pull request <a
href="https://redirect.github.com/serde-rs/json/issues/1062">#1062</a>
from osiewicz/remove_build_rs</li>
<li><a
href="https://github.com/serde-rs/json/commit/04f7758b6eae935237574b25a1e63cf5e281e19e"><code>04f7758</code></a>
fixup! chore: Remove no_btreemap_get_key_value and
no_btreemap_remove_entry.</li>
<li><a
href="https://github.com/serde-rs/json/commit/83bdc5fd4213d94201a3d9ad0f2943da7eba1dd6"><code>83bdc5f</code></a>
Omit return keyword in <code>remove_entry</code></li>
<li><a
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Revert &quot;Remove limb_width32 and limb_width64 features&quot;</li>
<li><a
href="https://github.com/serde-rs/json/commit/16e04ceeddfdfad18fb1ae8530695a318fa9bc02"><code>16e04ce</code></a>
fixup! Remove limb_width32 and limb_width64 features</li>
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Updates `syn` from 2.0.32 to 2.0.33
<details>
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<blockquote>
<h2>2.0.33</h2>
<ul>
<li>Special handling for the <code>(/*ERROR*/)</code> placeholder that
rustc uses for macros that fail to expand</li>
</ul>
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</details>
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Release 2.0.33</li>
<li><a
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Pull in proc-macro2 error placeholder change</li>
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Fall through to 'Unrecognized literal' error</li>
<li><a
href="https://github.com/dtolnay/syn/commit/a80570c81bf15c9afcf8e2470ab06f60f7a8183d"><code>a80570c</code></a>
Parse rustc's representation of macro expansion error</li>
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Upgrades to docify v0.2.3, which includes a fix for
https://github.com/sam0x17/docify/issues/7 and full support for
multi-byte UTF-8 characters