Rococo & Westend People Chain (#2281)

Rococo and Westend runtimes for the "People Chain". This chain contains
the Identity pallet with plans to migrate all related data from the
Relay Chain.

Changes `IdentityInfo` to:

- Remove `additional_fields`.
- Add `github` and `discord` as first class fields. From scraping chain
data, these were the only two additional fields used (for the Fellowship
and Ambassador Program, respectively).
- Rename `riot` to `matrix`.

Note: This will use the script in
https://github.com/paritytech/polkadot-sdk/pull/2025 to generate the
genesis state.

TODO:

- [x] https://github.com/paritytech/polkadot-sdk/pull/1814 and
integration of the Identity Migrator pallet for migration.
- [x] Tests: https://github.com/paritytech/polkadot-sdk/pull/2373

---------

Co-authored-by: Muharem <ismailov.m.h@gmail.com>
Co-authored-by: Michal Kucharczyk <1728078+michalkucharczyk@users.noreply.github.com>
Co-authored-by: Dónal Murray <donal.murray@parity.io>
Co-authored-by: Richard Melkonian <35300528+0xmovses@users.noreply.github.com>
Co-authored-by: Liam Aharon <liam.aharon@hotmail.com>

cumulus/polkadot-parachain/src/chain_spec/mod.rs

@@ -27,6 +27,7 @@ pub mod contracts;
 pub mod coretime;
 pub mod glutton;
 pub mod penpal;
+pub mod people;
 pub mod rococo_parachain;
 pub mod seedling;
 pub mod shell;

cumulus/polkadot-parachain/src/chain_spec/people.rs

@@ -0,0 +1,320 @@
+// Copyright Parity Technologies (UK) Ltd.
+// This file is part of Cumulus.
+
+// Cumulus 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.
+
+// Cumulus 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 Cumulus.  If not, see <http://www.gnu.org/licenses/>.
+
+use crate::chain_spec::GenericChainSpec;
+use cumulus_primitives_core::ParaId;
+use parachains_common::Balance as PeopleBalance;
+use sc_chain_spec::ChainSpec;
+use std::str::FromStr;
+
+/// Collects all supported People configurations.
+#[derive(Debug, PartialEq)]
+pub enum PeopleRuntimeType {
+	Rococo,
+	RococoLocal,
+	RococoDevelopment,
+	Westend,
+	WestendLocal,
+	WestendDevelopment,
+}
+
+impl FromStr for PeopleRuntimeType {
+	type Err = String;
+
+	fn from_str(value: &str) -> Result<Self, Self::Err> {
+		match value {
+			rococo::PEOPLE_ROCOCO => Ok(PeopleRuntimeType::Rococo),
+			rococo::PEOPLE_ROCOCO_LOCAL => Ok(PeopleRuntimeType::RococoLocal),
+			rococo::PEOPLE_ROCOCO_DEVELOPMENT => Ok(PeopleRuntimeType::RococoDevelopment),
+			westend::PEOPLE_WESTEND => Ok(PeopleRuntimeType::Westend),
+			westend::PEOPLE_WESTEND_LOCAL => Ok(PeopleRuntimeType::WestendLocal),
+			westend::PEOPLE_WESTEND_DEVELOPMENT => Ok(PeopleRuntimeType::WestendDevelopment),
+			_ => Err(format!("Value '{}' is not configured yet", value)),
+		}
+	}
+}
+
+impl PeopleRuntimeType {
+	pub const ID_PREFIX: &'static str = "people";
+
+	pub fn load_config(&self) -> Result<Box<dyn ChainSpec>, String> {
+		match self {
+			PeopleRuntimeType::Rococo => Ok(Box::new(GenericChainSpec::from_json_bytes(
+				&include_bytes!("../../chain-specs/people-rococo.json")[..],
+			)?)),
+			PeopleRuntimeType::RococoLocal => Ok(Box::new(rococo::local_config(
+				rococo::PEOPLE_ROCOCO_LOCAL,
+				"Rococo People Local",
+				"rococo-local",
+				ParaId::new(1004),
+			))),
+			PeopleRuntimeType::RococoDevelopment => Ok(Box::new(rococo::local_config(
+				rococo::PEOPLE_ROCOCO_DEVELOPMENT,
+				"Rococo People Development",
+				"rococo-development",
+				ParaId::new(1004),
+			))),
+			PeopleRuntimeType::Westend => Ok(Box::new(GenericChainSpec::from_json_bytes(
+				&include_bytes!("../../chain-specs/people-westend.json")[..],
+			)?)),
+			PeopleRuntimeType::WestendLocal => Ok(Box::new(westend::local_config(
+				westend::PEOPLE_WESTEND_LOCAL,
+				"Westend People Local",
+				"westend-local",
+				ParaId::new(1004),
+			))),
+			PeopleRuntimeType::WestendDevelopment => Ok(Box::new(westend::local_config(
+				westend::PEOPLE_WESTEND_DEVELOPMENT,
+				"Westend People Development",
+				"westend-development",
+				ParaId::new(1004),
+			))),
+		}
+	}
+}
+
+/// Check if `id` satisfies People-like format.
+fn ensure_id(id: &str) -> Result<&str, String> {
+	if id.starts_with(PeopleRuntimeType::ID_PREFIX) {
+		Ok(id)
+	} else {
+		Err(format!(
+			"Invalid 'id' attribute ({}), should start with prefix: {}",
+			id,
+			PeopleRuntimeType::ID_PREFIX
+		))
+	}
+}
+
+/// Sub-module for Rococo setup.
+pub mod rococo {
+	use super::{ParaId, PeopleBalance};
+	use crate::chain_spec::{
+		get_account_id_from_seed, get_collator_keys_from_seed, Extensions, GenericChainSpec,
+		SAFE_XCM_VERSION,
+	};
+	use parachains_common::{rococo::currency::EXISTENTIAL_DEPOSIT, AccountId, AuraId};
+	use sc_chain_spec::ChainType;
+	use sp_core::sr25519;
+
+	pub(crate) const PEOPLE_ROCOCO: &str = "people-rococo";
+	pub(crate) const PEOPLE_ROCOCO_LOCAL: &str = "people-rococo-local";
+	pub(crate) const PEOPLE_ROCOCO_DEVELOPMENT: &str = "people-rococo-development";
+	const PEOPLE_ROCOCO_ED: PeopleBalance = EXISTENTIAL_DEPOSIT;
+
+	pub fn local_config(
+		id: &str,
+		chain_name: &str,
+		relay_chain: &str,
+		para_id: ParaId,
+	) -> GenericChainSpec {
+		let mut properties = sc_chain_spec::Properties::new();
+		properties.insert("ss58Format".into(), 42.into());
+		properties.insert("tokenSymbol".into(), "ROC".into());
+		properties.insert("tokenDecimals".into(), 12.into());
+
+		GenericChainSpec::builder(
+			people_rococo_runtime::WASM_BINARY
+				.expect("WASM binary was not built, please build it!"),
+			Extensions { relay_chain: relay_chain.to_string(), para_id: para_id.into() },
+		)
+		.with_name(chain_name)
+		.with_id(super::ensure_id(id).expect("invalid id"))
+		.with_chain_type(ChainType::Local)
+		.with_genesis_config_patch(genesis(
+			// initial collators.
+			vec![
+				(
+					get_account_id_from_seed::<sr25519::Public>("Alice"),
+					get_collator_keys_from_seed::<AuraId>("Alice"),
+				),
+				(
+					get_account_id_from_seed::<sr25519::Public>("Bob"),
+					get_collator_keys_from_seed::<AuraId>("Bob"),
+				),
+			],
+			vec![
+				get_account_id_from_seed::<sr25519::Public>("Alice"),
+				get_account_id_from_seed::<sr25519::Public>("Bob"),
+				get_account_id_from_seed::<sr25519::Public>("Charlie"),
+				get_account_id_from_seed::<sr25519::Public>("Dave"),
+				get_account_id_from_seed::<sr25519::Public>("Eve"),
+				get_account_id_from_seed::<sr25519::Public>("Ferdie"),
+				get_account_id_from_seed::<sr25519::Public>("Alice//stash"),
+				get_account_id_from_seed::<sr25519::Public>("Bob//stash"),
+				get_account_id_from_seed::<sr25519::Public>("Charlie//stash"),
+				get_account_id_from_seed::<sr25519::Public>("Dave//stash"),
+				get_account_id_from_seed::<sr25519::Public>("Eve//stash"),
+				get_account_id_from_seed::<sr25519::Public>("Ferdie//stash"),
+			],
+			para_id,
+		))
+		.with_properties(properties)
+		.build()
+	}
+
+	fn genesis(
+		invulnerables: Vec<(AccountId, AuraId)>,
+		endowed_accounts: Vec<AccountId>,
+		id: ParaId,
+	) -> serde_json::Value {
+		serde_json::json!({
+			"balances": {
+				"balances": endowed_accounts
+					.iter()
+					.cloned()
+					.map(|k| (k, PEOPLE_ROCOCO_ED * 524_288))
+					.collect::<Vec<_>>(),
+			},
+			"parachainInfo": {
+				"parachainId": id,
+			},
+			"collatorSelection": {
+				"invulnerables": invulnerables
+					.iter()
+					.cloned()
+					.map(|(acc, _)| acc)
+					.collect::<Vec<_>>(),
+				"candidacyBond": PEOPLE_ROCOCO_ED * 16,
+			},
+			"session": {
+				"keys": invulnerables
+					.into_iter()
+					.map(|(acc, aura)| {
+						(
+							acc.clone(),                                 // account id
+							acc,                                         // validator id
+							people_rococo_runtime::SessionKeys { aura }, // session keys
+						)
+					})
+					.collect::<Vec<_>>(),
+			},
+			"polkadotXcm": {
+				"safeXcmVersion": Some(SAFE_XCM_VERSION),
+			}
+		})
+	}
+}
+
+/// Sub-module for Westend setup.
+pub mod westend {
+	use super::{ParaId, PeopleBalance};
+	use crate::chain_spec::{
+		get_account_id_from_seed, get_collator_keys_from_seed, Extensions, GenericChainSpec,
+		SAFE_XCM_VERSION,
+	};
+	use parachains_common::{westend::currency::EXISTENTIAL_DEPOSIT, AccountId, AuraId};
+	use sc_chain_spec::ChainType;
+	use sp_core::sr25519;
+
+	pub(crate) const PEOPLE_WESTEND: &str = "people-westend";
+	pub(crate) const PEOPLE_WESTEND_LOCAL: &str = "people-westend-local";
+	pub(crate) const PEOPLE_WESTEND_DEVELOPMENT: &str = "people-westend-development";
+	const PEOPLE_WESTEND_ED: PeopleBalance = EXISTENTIAL_DEPOSIT;
+
+	pub fn local_config(
+		id: &str,
+		chain_name: &str,
+		relay_chain: &str,
+		para_id: ParaId,
+	) -> GenericChainSpec {
+		let mut properties = sc_chain_spec::Properties::new();
+		properties.insert("ss58Format".into(), 42.into());
+		properties.insert("tokenSymbol".into(), "WND".into());
+		properties.insert("tokenDecimals".into(), 12.into());
+
+		GenericChainSpec::builder(
+			people_westend_runtime::WASM_BINARY
+				.expect("WASM binary was not built, please build it!"),
+			Extensions { relay_chain: relay_chain.to_string(), para_id: para_id.into() },
+		)
+		.with_name(chain_name)
+		.with_id(super::ensure_id(id).expect("invalid id"))
+		.with_chain_type(ChainType::Local)
+		.with_genesis_config_patch(genesis(
+			// initial collators.
+			vec![
+				(
+					get_account_id_from_seed::<sr25519::Public>("Alice"),
+					get_collator_keys_from_seed::<AuraId>("Alice"),
+				),
+				(
+					get_account_id_from_seed::<sr25519::Public>("Bob"),
+					get_collator_keys_from_seed::<AuraId>("Bob"),
+				),
+			],
+			vec![
+				get_account_id_from_seed::<sr25519::Public>("Alice"),
+				get_account_id_from_seed::<sr25519::Public>("Bob"),
+				get_account_id_from_seed::<sr25519::Public>("Charlie"),
+				get_account_id_from_seed::<sr25519::Public>("Dave"),
+				get_account_id_from_seed::<sr25519::Public>("Eve"),
+				get_account_id_from_seed::<sr25519::Public>("Ferdie"),
+				get_account_id_from_seed::<sr25519::Public>("Alice//stash"),
+				get_account_id_from_seed::<sr25519::Public>("Bob//stash"),
+				get_account_id_from_seed::<sr25519::Public>("Charlie//stash"),
+				get_account_id_from_seed::<sr25519::Public>("Dave//stash"),
+				get_account_id_from_seed::<sr25519::Public>("Eve//stash"),
+				get_account_id_from_seed::<sr25519::Public>("Ferdie//stash"),
+			],
+			para_id,
+		))
+		.with_properties(properties)
+		.build()
+	}
+
+	fn genesis(
+		invulnerables: Vec<(AccountId, AuraId)>,
+		endowed_accounts: Vec<AccountId>,
+		id: ParaId,
+	) -> serde_json::Value {
+		serde_json::json!({
+			"balances": {
+				"balances": endowed_accounts
+					.iter()
+					.cloned()
+					.map(|k| (k, PEOPLE_WESTEND_ED * 524_288))
+					.collect::<Vec<_>>(),
+			},
+			"parachainInfo": {
+				"parachainId": id,
+			},
+			"collatorSelection": {
+				"invulnerables": invulnerables
+					.iter()
+					.cloned()
+					.map(|(acc, _)| acc)
+					.collect::<Vec<_>>(),
+				"candidacyBond": PEOPLE_WESTEND_ED * 16,
+			},
+			"session": {
+				"keys": invulnerables
+					.into_iter()
+					.map(|(acc, aura)| {
+						(
+							acc.clone(),                                  // account id
+							acc,                                          // validator id
+							people_westend_runtime::SessionKeys { aura }, // session keys
+						)
+					})
+					.collect::<Vec<_>>(),
+			},
+			"polkadotXcm": {
+				"safeXcmVersion": Some(SAFE_XCM_VERSION),
+			}
+		})
+	}
+}

cumulus/polkadot-parachain/src/command.rs

@@ -56,6 +56,7 @@ enum Runtime {
 	GluttonWestend,
 	BridgeHub(chain_spec::bridge_hubs::BridgeHubRuntimeType),
 	Coretime(chain_spec::coretime::CoretimeRuntimeType),
+	People(chain_spec::people::PeopleRuntimeType),
 }
 
 trait RuntimeResolver {
@@ -122,6 +123,8 @@ fn runtime(id: &str) -> Runtime {
 		Runtime::GluttonWestend
 	} else if id.starts_with("glutton") {
 		Runtime::Glutton
+	} else if id.starts_with(chain_spec::people::PeopleRuntimeType::ID_PREFIX) {
+		Runtime::People(id.parse::<chain_spec::people::PeopleRuntimeType>().expect("Invalid value"))
 	} else {
 		log::warn!("No specific runtime was recognized for ChainSpec's id: '{}', so Runtime::default() will be used", id);
 		Runtime::default()
@@ -247,6 +250,14 @@ fn load_spec(id: &str) -> std::result::Result<Box<dyn ChainSpec>, String> {
 			para_id.expect("Must specify parachain id"),
 		)),
 
+		// -- People
+		people_like_id
+			if people_like_id.starts_with(chain_spec::people::PeopleRuntimeType::ID_PREFIX) =>
+			people_like_id
+				.parse::<chain_spec::people::PeopleRuntimeType>()
+				.expect("invalid value")
+				.load_config()?,
+
 		// -- Fallback (generic chainspec)
 		"" => {
 			log::warn!("No ChainSpec.id specified, so using default one, based on rococo-parachain runtime");
@@ -397,7 +408,8 @@ macro_rules! construct_partials {
 			Runtime::BridgeHub(_) |
 			Runtime::CollectivesPolkadot |
 			Runtime::CollectivesWestend |
-			Runtime::Coretime(_) => {
+			Runtime::Coretime(_) |
+			Runtime::People(_) => {
 				let $partials = new_partial::<RuntimeApi, _>(
 					&$config,
 					crate::service::aura_build_import_queue::<_, AuraId>,
@@ -449,7 +461,8 @@ macro_rules! construct_async_run {
 			Runtime::BridgeHub(_) |
 			Runtime::CollectivesPolkadot |
 			Runtime::CollectivesWestend |
-			Runtime::Coretime(_) => {
+			Runtime::Coretime(_) |
+			Runtime::People(_) => {
 				runner.async_run(|$config| {
 					let $components = new_partial::<RuntimeApi, _>(
 						&$config,
@@ -501,6 +514,7 @@ macro_rules! construct_async_run {
 
 /// Parse command line arguments into service configuration.
 pub fn run() -> Result<()> {
+	use Runtime::*;
 	let cli = Cli::from_args();
 
 	match &cli.subcommand {
@@ -673,35 +687,26 @@ pub fn run() -> Result<()> {
 				info!("Is collating: {}", if config.role.is_authority() { "yes" } else { "no" });
 
 				match config.chain_spec.runtime() {
-					Runtime::AssetHubPolkadot => crate::service::start_asset_hub_node::<
+					AssetHubPolkadot => crate::service::start_asset_hub_node::<
 						AssetHubPolkadotRuntimeApi,
 						AssetHubPolkadotAuraId,
 					>(config, polkadot_config, collator_options, id, hwbench)
 					.await
 					.map(|r| r.0)
 					.map_err(Into::into),
-					Runtime::AssetHubKusama => crate::service::start_asset_hub_node::<
-						RuntimeApi,
-						AuraId,
-					>(config, polkadot_config, collator_options, id, hwbench)
-					.await
-					.map(|r| r.0)
-					.map_err(Into::into),
-					Runtime::AssetHubRococo => crate::service::start_asset_hub_node::<
-						RuntimeApi,
-						AuraId,
-					>(config, polkadot_config, collator_options, id, hwbench)
+
+					AssetHubKusama |
+					AssetHubRococo |
+					AssetHubWestend =>
+						crate::service::start_asset_hub_node::<
+							RuntimeApi,
+							AuraId,
+						>(config, polkadot_config, collator_options, id, hwbench)
 						.await
 						.map(|r| r.0)
 						.map_err(Into::into),
-					Runtime::AssetHubWestend => crate::service::start_asset_hub_node::<
-						RuntimeApi,
-						AuraId,
-					>(config, polkadot_config, collator_options, id, hwbench)
-					.await
-					.map(|r| r.0)
-					.map_err(Into::into),
-					Runtime::CollectivesPolkadot =>
+
+					CollectivesPolkadot | CollectivesWestend =>
 						crate::service::start_generic_aura_node::<
 							RuntimeApi,
 							AuraId,
@@ -709,15 +714,8 @@ pub fn run() -> Result<()> {
 						.await
 						.map(|r| r.0)
 						.map_err(Into::into),
-					Runtime::CollectivesWestend =>
-						crate::service::start_generic_aura_node::<
-							RuntimeApi,
-							AuraId,
-						>(config, polkadot_config, collator_options, id, hwbench)
-						.await
-						.map(|r| r.0)
-						.map_err(Into::into),
-					Runtime::Shell =>
+
+					Seedling | Shell =>
 						crate::service::start_shell_node::<RuntimeApi>(
 							config,
 							polkadot_config,
@@ -728,18 +726,8 @@ pub fn run() -> Result<()> {
 						.await
 						.map(|r| r.0)
 						.map_err(Into::into),
-					Runtime::Seedling =>
-						crate::service::start_shell_node::<RuntimeApi>(
-							config,
-							polkadot_config,
-							collator_options,
-							id,
-							hwbench
-						)
-						.await
-						.map(|r| r.0)
-						.map_err(Into::into),
-					Runtime::ContractsRococo => crate::service::start_contracts_rococo_node(
+
+					ContractsRococo => crate::service::start_contracts_rococo_node(
 						config,
 						polkadot_config,
 						collator_options,
@@ -750,7 +738,7 @@ pub fn run() -> Result<()> {
 					.map(|r| r.0)
 					.map_err(Into::into),
 
-					Runtime::BridgeHub(bridge_hub_runtime_type) => match bridge_hub_runtime_type {
+					BridgeHub(bridge_hub_runtime_type) => match bridge_hub_runtime_type {
 						chain_spec::bridge_hubs::BridgeHubRuntimeType::Polkadot =>
 							crate::service::start_generic_aura_node::<
 								RuntimeApi,
@@ -786,7 +774,7 @@ pub fn run() -> Result<()> {
 					}
 					.map_err(Into::into),
 
-					Runtime::Coretime(coretime_runtime_type) => match coretime_runtime_type {
+					Coretime(coretime_runtime_type) => match coretime_runtime_type {
 						chain_spec::coretime::CoretimeRuntimeType::Rococo |
 						chain_spec::coretime::CoretimeRuntimeType::RococoLocal |
 						chain_spec::coretime::CoretimeRuntimeType::RococoDevelopment |
@@ -801,7 +789,7 @@ pub fn run() -> Result<()> {
 					}
 					.map_err(Into::into),
 
-					Runtime::Penpal(_) | Runtime::Default =>
+					Penpal(_) | Default =>
 						crate::service::start_rococo_parachain_node(
 							config,
 							polkadot_config,
@@ -812,15 +800,8 @@ pub fn run() -> Result<()> {
 						.await
 						.map(|r| r.0)
 						.map_err(Into::into),
-					Runtime::GluttonWestend =>
-						crate::service::start_basic_lookahead_node::<
-							RuntimeApi,
-							AuraId,
-						>(config, polkadot_config, collator_options, id, hwbench)
-						.await
-						.map(|r| r.0)
-						.map_err(Into::into),
-					Runtime::Glutton =>
+
+					Glutton | GluttonWestend =>
 						crate::service::start_basic_lookahead_node::<
 							RuntimeApi,
 							AuraId,
@@ -828,6 +809,22 @@ pub fn run() -> Result<()> {
 						.await
 						.map(|r| r.0)
 						.map_err(Into::into),
+
+					People(people_runtime_type) => match people_runtime_type {
+						chain_spec::people::PeopleRuntimeType::Rococo |
+						chain_spec::people::PeopleRuntimeType::RococoLocal |
+						chain_spec::people::PeopleRuntimeType::RococoDevelopment |
+						chain_spec::people::PeopleRuntimeType::Westend |
+						chain_spec::people::PeopleRuntimeType::WestendLocal |
+						chain_spec::people::PeopleRuntimeType::WestendDevelopment =>
+							crate::service::start_generic_aura_node::<
+								RuntimeApi,
+								AuraId,
+							>(config, polkadot_config, collator_options, id, hwbench)
+							.await
+							.map(|r| r.0),
+					}
+					.map_err(Into::into),
 				}
 			})
 		},

cumulus/polkadot-parachain/src/service.rs

@@ -98,7 +98,6 @@ impl sc_executor::NativeExecutionDispatch for ShellRuntimeExecutor {
 
 /// Native Asset Hub Westend (Westmint) executor instance.
 pub struct AssetHubWestendExecutor;
-
 impl sc_executor::NativeExecutionDispatch for AssetHubWestendExecutor {
 	type ExtendHostFunctions = frame_benchmarking::benchmarking::HostFunctions;
 
@@ -128,7 +127,6 @@ impl sc_executor::NativeExecutionDispatch for CollectivesWestendRuntimeExecutor
 
 /// Native BridgeHubRococo executor instance.
 pub struct BridgeHubRococoRuntimeExecutor;
-
 impl sc_executor::NativeExecutionDispatch for BridgeHubRococoRuntimeExecutor {
 	type ExtendHostFunctions = frame_benchmarking::benchmarking::HostFunctions;
 
@@ -167,7 +165,6 @@ impl sc_executor::NativeExecutionDispatch for CoretimeWestendRuntimeExecutor {
 
 /// Native contracts executor instance.
 pub struct ContractsRococoRuntimeExecutor;
-
 impl sc_executor::NativeExecutionDispatch for ContractsRococoRuntimeExecutor {
 	type ExtendHostFunctions = frame_benchmarking::benchmarking::HostFunctions;
 
@@ -195,6 +192,30 @@ impl sc_executor::NativeExecutionDispatch for GluttonWestendRuntimeExecutor {
 	}
 }
 
+/// Native `PeopleWestend` executor instance.
+pub struct PeopleWestendRuntimeExecutor;
+impl sc_executor::NativeExecutionDispatch for PeopleWestendRuntimeExecutor {
+	type ExtendHostFunctions = frame_benchmarking::benchmarking::HostFunctions;
+	fn dispatch(method: &str, data: &[u8]) -> Option<Vec<u8>> {
+		people_westend_runtime::api::dispatch(method, data)
+	}
+	fn native_version() -> sc_executor::NativeVersion {
+		people_westend_runtime::native_version()
+	}
+}
+
+/// Native `PeopleRococo` executor instance.
+pub struct PeopleRococoRuntimeExecutor;
+impl sc_executor::NativeExecutionDispatch for PeopleRococoRuntimeExecutor {
+	type ExtendHostFunctions = frame_benchmarking::benchmarking::HostFunctions;
+	fn dispatch(method: &str, data: &[u8]) -> Option<Vec<u8>> {
+		people_rococo_runtime::api::dispatch(method, data)
+	}
+	fn native_version() -> sc_executor::NativeVersion {
+		people_rococo_runtime::native_version()
+	}
+}
+
 /// Starts a `ServiceBuilder` for a full service.
 ///
 /// Use this macro if you don't actually need the full service, but just the builder in order to