Files
pezkuwi-subxt/cumulus/polkadot-parachains/src/chain_spec.rs
T
Guillaume Thiolliere b36e4dbca5 update substrate/polkadot with construct_runtime changes (#485)
* update substrate/polkadot with construct_runtime changes

* fix update

* Fixes

* More fixes

* fix test, but might be wrong fix

Co-authored-by: Bastian Köcher <info@kchr.de>
2021-06-10 17:50:09 +02:00

732 lines
22 KiB
Rust

// Copyright 2019-2021 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 cumulus_primitives_core::ParaId;
use hex_literal::hex;
use rococo_parachain_runtime::{AccountId, AuraId, Signature};
use sc_chain_spec::{ChainSpecExtension, ChainSpecGroup};
use sc_service::ChainType;
use serde::{Deserialize, Serialize};
use sp_core::{crypto::UncheckedInto, sr25519, Pair, Public};
use sp_runtime::traits::{IdentifyAccount, Verify};
/// Specialized `ChainSpec` for the normal parachain runtime.
pub type ChainSpec = sc_service::GenericChainSpec<rococo_parachain_runtime::GenesisConfig, Extensions>;
/// Specialized `ChainSpec` for the shell parachain runtime.
pub type ShellChainSpec = sc_service::GenericChainSpec<shell_runtime::GenesisConfig, Extensions>;
/// Helper function to generate a crypto pair from seed
pub fn get_from_seed<TPublic: Public>(seed: &str) -> <TPublic::Pair as Pair>::Public {
TPublic::Pair::from_string(&format!("//{}", seed), None)
.expect("static values are valid; qed")
.public()
}
/// The extensions for the [`ChainSpec`].
#[derive(Debug, Clone, PartialEq, Serialize, Deserialize, ChainSpecGroup, ChainSpecExtension)]
#[serde(deny_unknown_fields)]
pub struct Extensions {
/// The relay chain of the Parachain.
pub relay_chain: String,
/// The id of the Parachain.
pub para_id: u32,
}
impl Extensions {
/// Try to get the extension from the given `ChainSpec`.
pub fn try_get(chain_spec: &dyn sc_service::ChainSpec) -> Option<&Self> {
sc_chain_spec::get_extension(chain_spec.extensions())
}
}
type AccountPublic = <Signature as Verify>::Signer;
/// Helper function to generate an account ID from seed
pub fn get_account_id_from_seed<TPublic: Public>(seed: &str) -> AccountId where
AccountPublic: From<<TPublic::Pair as Pair>::Public>,
{
AccountPublic::from(get_from_seed::<TPublic>(seed)).into_account()
}
pub fn get_chain_spec(id: ParaId) -> ChainSpec {
ChainSpec::from_genesis(
"Local Testnet",
"local_testnet",
ChainType::Local,
move || {
testnet_genesis(
get_account_id_from_seed::<sr25519::Public>("Alice"),
vec![
get_from_seed::<AuraId>("Alice"),
get_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"),
],
id,
)
},
vec![],
None,
None,
None,
Extensions {
relay_chain: "westend".into(),
para_id: id.into(),
},
)
}
pub fn get_shell_chain_spec(id: ParaId) -> ShellChainSpec {
ShellChainSpec::from_genesis(
"Shell Local Testnet",
"shell_local_testnet",
ChainType::Local,
move || shell_testnet_genesis(id),
vec![],
None,
None,
None,
Extensions {
relay_chain: "westend".into(),
para_id: id.into(),
},
)
}
pub fn staging_test_net(id: ParaId) -> ChainSpec {
ChainSpec::from_genesis(
"Staging Testnet",
"staging_testnet",
ChainType::Live,
move || {
testnet_genesis(
hex!["9ed7705e3c7da027ba0583a22a3212042f7e715d3c168ba14f1424e2bc111d00"].into(),
vec![
// $secret//one
hex!["aad9fa2249f87a210a0f93400b7f90e47b810c6d65caa0ca3f5af982904c2a33"]
.unchecked_into(),
// $secret//two
hex!["d47753f0cca9dd8da00c70e82ec4fc5501a69c49a5952a643d18802837c88212"]
.unchecked_into(),
],
vec![
hex!["9ed7705e3c7da027ba0583a22a3212042f7e715d3c168ba14f1424e2bc111d00"].into(),
],
id,
)
},
Vec::new(),
None,
None,
None,
Extensions {
relay_chain: "westend".into(),
para_id: id.into(),
},
)
}
fn testnet_genesis(
root_key: AccountId,
initial_authorities: Vec<AuraId>,
endowed_accounts: Vec<AccountId>,
id: ParaId,
) -> rococo_parachain_runtime::GenesisConfig {
rococo_parachain_runtime::GenesisConfig {
system: rococo_parachain_runtime::SystemConfig {
code: rococo_parachain_runtime::WASM_BINARY
.expect("WASM binary was not build, please build it!")
.to_vec(),
changes_trie_config: Default::default(),
},
balances: rococo_parachain_runtime::BalancesConfig {
balances: endowed_accounts
.iter()
.cloned()
.map(|k| (k, 1 << 60))
.collect(),
},
sudo: rococo_parachain_runtime::SudoConfig { key: root_key },
parachain_info: rococo_parachain_runtime::ParachainInfoConfig { parachain_id: id },
aura: rococo_parachain_runtime::AuraConfig {
authorities: initial_authorities,
},
aura_ext: Default::default(),
parachain_system: Default::default(),
}
}
fn shell_testnet_genesis(parachain_id: ParaId) -> shell_runtime::GenesisConfig {
shell_runtime::GenesisConfig {
system: shell_runtime::SystemConfig {
code: shell_runtime::WASM_BINARY
.expect("WASM binary was not build, please build it!")
.to_vec(),
changes_trie_config: Default::default(),
},
parachain_info: shell_runtime::ParachainInfoConfig { parachain_id },
parachain_system: Default::default(),
}
}
use statemint_common::Balance as StatemintBalance;
/// Specialized `ChainSpec` for the normal parachain runtime.
pub type StatemintChainSpec = sc_service::GenericChainSpec<statemint_runtime::GenesisConfig, Extensions>;
pub type StatemineChainSpec = sc_service::GenericChainSpec<statemine_runtime::GenesisConfig, Extensions>;
pub type WestmintChainSpec = sc_service::GenericChainSpec<westmint_runtime::GenesisConfig, Extensions>;
const STATEMINT_ED: StatemintBalance = statemint_runtime::constants::currency::EXISTENTIAL_DEPOSIT;
const STATEMINE_ED: StatemintBalance = statemine_runtime::constants::currency::EXISTENTIAL_DEPOSIT;
const WESTMINT_ED: StatemintBalance = westmint_runtime::constants::currency::EXISTENTIAL_DEPOSIT;
/// Helper function to generate a crypto pair from seed
pub fn get_pair_from_seed<TPublic: Public>(seed: &str) -> <TPublic::Pair as Pair>::Public {
TPublic::Pair::from_string(&format!("//{}", seed), None)
.expect("static values are valid; qed")
.public()
}
/// Generate collator keys from seed.
///
/// This function's return type must always match the session keys of the chain in tuple format.
pub fn get_collator_keys_from_seed(seed: &str) -> AuraId {
get_pair_from_seed::<AuraId>(seed)
}
/// Generate the session keys from individual elements.
///
/// The input must be a tuple of individual keys (a single arg for now since we have just one key).
pub fn statemint_session_keys(keys: AuraId) -> statemint_runtime::opaque::SessionKeys {
statemint_runtime::opaque::SessionKeys { aura: keys }
}
/// Generate the session keys from individual elements.
///
/// The input must be a tuple of individual keys (a single arg for now since we have just one key).
pub fn statemine_session_keys(keys: AuraId) -> statemine_runtime::opaque::SessionKeys {
statemine_runtime::opaque::SessionKeys { aura: keys }
}
/// Generate the session keys from individual elements.
///
/// The input must be a tuple of individual keys (a single arg for now since we have just one key).
pub fn westmint_session_keys(keys: AuraId) -> westmint_runtime::opaque::SessionKeys {
westmint_runtime::opaque::SessionKeys { aura: keys }
}
pub fn statemint_development_config(id: ParaId) -> StatemintChainSpec {
let mut properties = sc_chain_spec::Properties::new();
properties.insert("tokenSymbol".into(), "DOT".into());
properties.insert("tokenDecimals".into(), 10.into());
StatemintChainSpec::from_genesis(
// Name
"Statemint Development",
// ID
"statemint_dev",
ChainType::Local,
move || {
statemint_genesis(
// initial collators.
vec![
(
get_account_id_from_seed::<sr25519::Public>("Alice"),
get_collator_keys_from_seed("Alice"),
)
],
vec![
get_account_id_from_seed::<sr25519::Public>("Alice"),
get_account_id_from_seed::<sr25519::Public>("Bob"),
get_account_id_from_seed::<sr25519::Public>("Alice//stash"),
get_account_id_from_seed::<sr25519::Public>("Bob//stash"),
],
id,
)
},
vec![],
None,
None,
Some(properties),
Extensions {
relay_chain: "polkadot-dev".into(),
para_id: id.into(),
},
)
}
pub fn statemint_local_config(id: ParaId) -> StatemintChainSpec {
let mut properties = sc_chain_spec::Properties::new();
properties.insert("tokenSymbol".into(), "DOT".into());
properties.insert("tokenDecimals".into(), 10.into());
StatemintChainSpec::from_genesis(
// Name
"Statemint Local",
// ID
"statemint_local",
ChainType::Local,
move || {
statemint_genesis(
// initial collators.
vec![(
get_account_id_from_seed::<sr25519::Public>("Alice"),
get_collator_keys_from_seed("Alice")
),
(
get_account_id_from_seed::<sr25519::Public>("Bob"),
get_collator_keys_from_seed("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"),
],
id,
)
},
vec![],
None,
None,
Some(properties),
Extensions {
relay_chain: "polkadot-local".into(),
para_id: id.into(),
},
)
}
fn statemint_genesis(
invulnerables: Vec<(AccountId, AuraId)>,
endowed_accounts: Vec<AccountId>,
id: ParaId,
) -> statemint_runtime::GenesisConfig {
statemint_runtime::GenesisConfig {
system: statemint_runtime::SystemConfig {
code: statemint_runtime::WASM_BINARY
.expect("WASM binary was not build, please build it!")
.to_vec(),
changes_trie_config: Default::default(),
},
balances: statemint_runtime::BalancesConfig {
balances: endowed_accounts
.iter()
.cloned()
.map(|k| (k, STATEMINT_ED * 4096))
.collect(),
},
parachain_info: statemint_runtime::ParachainInfoConfig { parachain_id: id },
collator_selection: statemint_runtime::CollatorSelectionConfig {
invulnerables: invulnerables.iter().cloned().map(|(acc, _)| acc).collect(),
candidacy_bond: STATEMINT_ED * 16,
..Default::default()
},
session: statemint_runtime::SessionConfig {
keys: invulnerables.iter().cloned().map(|(acc, aura)| (
acc.clone(), // account id
acc.clone(), // validator id
statemint_session_keys(aura), // session keys
)).collect()
},
// no need to pass anything to aura, in fact it will panic if we do. Session will take care
// of this.
aura: Default::default(),
aura_ext: Default::default(),
parachain_system: Default::default(),
}
}
pub fn statemine_development_config(id: ParaId) -> StatemineChainSpec {
let mut properties = sc_chain_spec::Properties::new();
properties.insert("tokenSymbol".into(), "KSM".into());
properties.insert("tokenDecimals".into(), 12.into());
StatemineChainSpec::from_genesis(
// Name
"Statemine Development",
// ID
"statemine_dev",
ChainType::Local,
move || {
statemine_genesis(
// initial collators.
vec![
(
get_account_id_from_seed::<sr25519::Public>("Alice"),
get_collator_keys_from_seed("Alice"),
)
],
vec![
get_account_id_from_seed::<sr25519::Public>("Alice"),
get_account_id_from_seed::<sr25519::Public>("Bob"),
get_account_id_from_seed::<sr25519::Public>("Alice//stash"),
get_account_id_from_seed::<sr25519::Public>("Bob//stash"),
],
id,
)
},
vec![],
None,
None,
Some(properties),
Extensions {
relay_chain: "kusama-dev".into(),
para_id: id.into(),
},
)
}
pub fn statemine_local_config(id: ParaId) -> StatemineChainSpec {
let mut properties = sc_chain_spec::Properties::new();
properties.insert("tokenSymbol".into(), "KSM".into());
properties.insert("tokenDecimals".into(), 12.into());
StatemineChainSpec::from_genesis(
// Name
"Statemine Local",
// ID
"statemine_local",
ChainType::Local,
move || {
statemine_genesis(
// initial collators.
vec![(
get_account_id_from_seed::<sr25519::Public>("Alice"),
get_collator_keys_from_seed("Alice")
),
(
get_account_id_from_seed::<sr25519::Public>("Bob"),
get_collator_keys_from_seed("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"),
],
id,
)
},
vec![],
None,
None,
Some(properties),
Extensions {
relay_chain: "kusama-local".into(),
para_id: id.into(),
},
)
}
pub fn statemine_config(id: ParaId) -> StatemineChainSpec {
let mut properties = sc_chain_spec::Properties::new();
properties.insert("tokenSymbol".into(), "KSM".into());
properties.insert("tokenDecimals".into(), 12.into());
StatemineChainSpec::from_genesis(
// Name
"Statemine",
// ID
"statemine",
ChainType::Live,
move || {
statemine_genesis(
// initial collators.
vec![(
hex!("50673d59020488a4ffc9d8c6de3062a65977046e6990915617f85fef6d349730").into(),
hex!("50673d59020488a4ffc9d8c6de3062a65977046e6990915617f85fef6d349730").unchecked_into()
),
(
hex!("fe8102dbc244e7ea2babd9f53236d67403b046154370da5c3ea99def0bd0747a").into(),
hex!("fe8102dbc244e7ea2babd9f53236d67403b046154370da5c3ea99def0bd0747a").unchecked_into()
),
(
hex!("38144b5398e5d0da5ec936a3af23f5a96e782f676ab19d45f29075ee92eca76a").into(),
hex!("38144b5398e5d0da5ec936a3af23f5a96e782f676ab19d45f29075ee92eca76a").unchecked_into()
),
(
hex!("3253947640e309120ae70fa458dcacb915e2ddd78f930f52bd3679ec63fc4415").into(),
hex!("3253947640e309120ae70fa458dcacb915e2ddd78f930f52bd3679ec63fc4415").unchecked_into()
),
],
vec![],
id,
)
},
vec![],
None,
None,
Some(properties),
Extensions {
relay_chain: "kusama".into(),
para_id: id.into(),
},
)
}
fn statemine_genesis(
invulnerables: Vec<(AccountId, AuraId)>,
endowed_accounts: Vec<AccountId>,
id: ParaId,
) -> statemine_runtime::GenesisConfig {
statemine_runtime::GenesisConfig {
system: statemine_runtime::SystemConfig {
code: statemine_runtime::WASM_BINARY
.expect("WASM binary was not build, please build it!")
.to_vec(),
changes_trie_config: Default::default(),
},
balances: statemine_runtime::BalancesConfig {
balances: endowed_accounts
.iter()
.cloned()
.map(|k| (k, STATEMINE_ED * 4096))
.collect(),
},
parachain_info: statemine_runtime::ParachainInfoConfig { parachain_id: id },
collator_selection: statemine_runtime::CollatorSelectionConfig {
invulnerables: invulnerables.iter().cloned().map(|(acc, _)| acc).collect(),
candidacy_bond: STATEMINE_ED * 16,
..Default::default()
},
session: statemine_runtime::SessionConfig {
keys: invulnerables.iter().cloned().map(|(acc, aura)| (
acc.clone(), // account id
acc.clone(), // validator id
statemine_session_keys(aura), // session keys
)).collect()
},
aura: Default::default(),
aura_ext: Default::default(),
parachain_system: Default::default(),
}
}
pub fn westmint_development_config(id: ParaId) -> WestmintChainSpec {
let mut properties = sc_chain_spec::Properties::new();
properties.insert("tokenSymbol".into(), "WND".into());
properties.insert("tokenDecimals".into(), 12.into());
WestmintChainSpec::from_genesis(
// Name
"Westmint Development",
// ID
"westmint_dev",
ChainType::Local,
move || {
westmint_genesis(
// initial collators.
vec![
(
get_account_id_from_seed::<sr25519::Public>("Alice"),
get_collator_keys_from_seed("Alice"),
)
],
vec![
get_account_id_from_seed::<sr25519::Public>("Alice"),
get_account_id_from_seed::<sr25519::Public>("Bob"),
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>("Alice"),
id,
)
},
vec![],
None,
None,
Some(properties),
Extensions {
relay_chain: "westend".into(),
para_id: id.into(),
},
)
}
pub fn westmint_local_config(id: ParaId) -> WestmintChainSpec {
let mut properties = sc_chain_spec::Properties::new();
properties.insert("tokenSymbol".into(), "WND".into());
properties.insert("tokenDecimals".into(), 12.into());
WestmintChainSpec::from_genesis(
// Name
"Westmint Local",
// ID
"westmint_local",
ChainType::Local,
move || {
westmint_genesis(
// initial collators.
vec![(
get_account_id_from_seed::<sr25519::Public>("Alice"),
get_collator_keys_from_seed("Alice")
),
(
get_account_id_from_seed::<sr25519::Public>("Bob"),
get_collator_keys_from_seed("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"),
],
get_account_id_from_seed::<sr25519::Public>("Alice"),
id,
)
},
vec![],
None,
None,
Some(properties),
Extensions {
relay_chain: "westend-local".into(),
para_id: id.into(),
},
)
}
pub fn westmint_config(id: ParaId) -> WestmintChainSpec {
let mut properties = sc_chain_spec::Properties::new();
properties.insert("tokenSymbol".into(), "WND".into());
properties.insert("tokenDecimals".into(), 12.into());
WestmintChainSpec::from_genesis(
// Name
"Westmint",
// ID
"westmint",
ChainType::Live,
move || {
westmint_genesis(
// initial collators.
vec![(
hex!("9cfd429fa002114f33c1d3e211501d62830c9868228eb3b4b8ae15a83de04325").into(),
hex!("9cfd429fa002114f33c1d3e211501d62830c9868228eb3b4b8ae15a83de04325").unchecked_into()
),
(
hex!("12a03fb4e7bda6c9a07ec0a11d03c24746943e054ff0bb04938970104c783876").into(),
hex!("12a03fb4e7bda6c9a07ec0a11d03c24746943e054ff0bb04938970104c783876").unchecked_into()
),
(
hex!("1256436307dfde969324e95b8c62cb9101f520a39435e6af0f7ac07b34e1931f").into(),
hex!("1256436307dfde969324e95b8c62cb9101f520a39435e6af0f7ac07b34e1931f").unchecked_into()
),
(
hex!("98102b7bca3f070f9aa19f58feed2c0a4e107d203396028ec17a47e1ed80e322").into(),
hex!("98102b7bca3f070f9aa19f58feed2c0a4e107d203396028ec17a47e1ed80e322").unchecked_into()
),
],
vec![],
// re-use the Westend sudo key
hex!("6648d7f3382690650c681aba1b993cd11e54deb4df21a3a18c3e2177de9f7342").into(),
id,
)
},
vec![],
None,
None,
Some(properties),
Extensions {
relay_chain: "westend".into(),
para_id: id.into(),
},
)
}
fn westmint_genesis(
invulnerables: Vec<(AccountId, AuraId)>,
endowed_accounts: Vec<AccountId>,
root_key: AccountId,
id: ParaId,
) -> westmint_runtime::GenesisConfig {
westmint_runtime::GenesisConfig {
system: westmint_runtime::SystemConfig {
code: westmint_runtime::WASM_BINARY
.expect("WASM binary was not build, please build it!")
.to_vec(),
changes_trie_config: Default::default(),
},
balances: westmint_runtime::BalancesConfig {
balances: endowed_accounts
.iter()
.cloned()
.map(|k| (k, WESTMINT_ED * 4096))
.collect(),
},
sudo: westmint_runtime::SudoConfig { key: root_key },
parachain_info: westmint_runtime::ParachainInfoConfig { parachain_id: id },
collator_selection: westmint_runtime::CollatorSelectionConfig {
invulnerables: invulnerables.iter().cloned().map(|(acc, _)| acc).collect(),
candidacy_bond: WESTMINT_ED * 16,
..Default::default()
},
session: westmint_runtime::SessionConfig {
keys: invulnerables.iter().cloned().map(|(acc, aura)| (
acc.clone(), // account id
acc.clone(), // validator id
westmint_session_keys(aura), // session keys
)).collect()
},
// no need to pass anything to aura, in fact it will panic if we do. Session will take care
// of this.
aura: Default::default(),
aura_ext: Default::default(),
parachain_system: Default::default(),
}
}