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Struct cumulus_relay_chain_minimal_node::BlockChainRpcClient

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pub struct BlockChainRpcClient { /* private fields */ }

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impl BlockChainRpcClient

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pub fn new(rpc_client: RelayChainRpcClient) -> Self

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pub async fn chain_get_header( &self, hash: Option<Hash>, ) -> Result<Option<Header>, RelayChainError>

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pub async fn block_get_hash( &self, number: Option<BlockNumber>, ) -> Result<Option<Hash>, RelayChainError>

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impl BlockChainRpcClient

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pub async fn import_notification_stream( &self, ) -> RelayChainResult<Pin<Box<dyn Stream<Item = Header> + Send>>>

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pub async fn finality_notification_stream( &self, ) -> RelayChainResult<Pin<Box<dyn Stream<Item = Header> + Send>>>

Trait Implementations§

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impl AuthorityDiscovery<Block<Header<u32, BlakeTwo256>, OpaqueExtrinsic>> for BlockChainRpcClient

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fn authorities<'life0, 'async_trait>( &'life0 self, at: Hash, ) -> Pin<Box<dyn Future<Output = Result<Vec<AuthorityDiscoveryId>, ApiError>> + Send + 'async_trait>>
where Self: 'async_trait, 'life0: 'async_trait,

Retrieve authority identifiers of the current and next authority set.
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fn best_hash<'life0, 'async_trait>( &'life0 self, ) -> Pin<Box<dyn Future<Output = Result<Hash, AuthorityDiscoveryError>> + Send + 'async_trait>>
where Self: 'async_trait, 'life0: 'async_trait,

Retrieve best block hash
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impl AuxStore for BlockChainRpcClient

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fn insert_aux<'a, 'b: 'a, 'c: 'a, I: IntoIterator<Item = &'a (&'c [u8], &'c [u8])>, D: IntoIterator<Item = &'a &'b [u8]>>( &self, _insert: I, _delete: D, ) -> Result<()>

Insert auxiliary data into key-value store. Read more
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fn get_aux(&self, _key: &[u8]) -> Result<Option<Vec<u8>>>

Query auxiliary data from key-value store.
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impl ChainApiBackend for BlockChainRpcClient

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fn header<'life0, 'async_trait>( &'life0 self, hash: <Block as BlockT>::Hash, ) -> Pin<Box<dyn Future<Output = Result<Option<<Block as BlockT>::Header>>> + Send + 'async_trait>>
where Self: 'async_trait, 'life0: 'async_trait,

Get block header. Returns None if block is not found.
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fn info<'life0, 'async_trait>( &'life0 self, ) -> Pin<Box<dyn Future<Output = Result<Info<Block>>> + Send + 'async_trait>>
where Self: 'async_trait, 'life0: 'async_trait,

Get blockchain info.
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fn number<'life0, 'async_trait>( &'life0 self, hash: <Block as BlockT>::Hash, ) -> Pin<Box<dyn Future<Output = Result<Option<<<Block as BlockT>::Header as HeaderT>::Number>>> + Send + 'async_trait>>
where Self: 'async_trait, 'life0: 'async_trait,

Get block number by hash. Returns None if the header is not in the chain.
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fn hash<'life0, 'async_trait>( &'life0 self, number: NumberFor<Block>, ) -> Pin<Box<dyn Future<Output = Result<Option<<Block as BlockT>::Hash>>> + Send + 'async_trait>>
where Self: 'async_trait, 'life0: 'async_trait,

Get block hash by number. Returns None if the header is not in the chain.
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impl Clone for BlockChainRpcClient

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fn clone(&self) -> BlockChainRpcClient

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl RuntimeApiSubsystemClient for BlockChainRpcClient

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fn approval_voting_params<'life0, 'async_trait>( &'life0 self, at: Hash, session_index: SessionIndex, ) -> Pin<Box<dyn Future<Output = Result<ApprovalVotingParams, ApiError>> + Send + 'async_trait>>
where Self: 'async_trait, 'life0: 'async_trait,

Approval voting configuration parameters

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fn validators<'life0, 'async_trait>( &'life0 self, at: Hash, ) -> Pin<Box<dyn Future<Output = Result<Vec<ValidatorId>, ApiError>> + Send + 'async_trait>>
where Self: 'async_trait, 'life0: 'async_trait,

Get the current validators.
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fn validator_groups<'life0, 'async_trait>( &'life0 self, at: Hash, ) -> Pin<Box<dyn Future<Output = Result<(Vec<Vec<ValidatorIndex>>, GroupRotationInfo<BlockNumber>), ApiError>> + Send + 'async_trait>>
where Self: 'async_trait, 'life0: 'async_trait,

Returns the validator groups and rotation info localized based on the hypothetical child of a block whose state this is invoked on. Note that now in the GroupRotationInfo should be the successor of the number of the block.
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fn availability_cores<'life0, 'async_trait>( &'life0 self, at: Hash, ) -> Pin<Box<dyn Future<Output = Result<Vec<CoreState<Hash, BlockNumber>>, ApiError>> + Send + 'async_trait>>
where Self: 'async_trait, 'life0: 'async_trait,

Yields information on all availability cores as relevant to the child block. Cores are either free or occupied. Free cores can have paras assigned to them.
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fn persisted_validation_data<'life0, 'async_trait>( &'life0 self, at: Hash, para_id: ParaId, assumption: OccupiedCoreAssumption, ) -> Pin<Box<dyn Future<Output = Result<Option<PersistedValidationData<Hash, BlockNumber>>, ApiError>> + Send + 'async_trait>>
where Self: 'async_trait, 'life0: 'async_trait,

Yields the persisted validation data for the given ParaId along with an assumption that should be used if the para currently occupies a core. Read more
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fn assumed_validation_data<'life0, 'async_trait>( &'life0 self, at: Hash, para_id: ParaId, expected_persisted_validation_data_hash: Hash, ) -> Pin<Box<dyn Future<Output = Result<Option<(PersistedValidationData<Hash, BlockNumber>, ValidationCodeHash)>, ApiError>> + Send + 'async_trait>>
where Self: 'async_trait, 'life0: 'async_trait,

Returns the persisted validation data for the given ParaId along with the corresponding validation code hash. Instead of accepting assumption about the para, matches the validation data hash against an expected one and yields None if they’re not equal.
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fn check_validation_outputs<'life0, 'async_trait>( &'life0 self, at: Hash, para_id: ParaId, outputs: CandidateCommitments, ) -> Pin<Box<dyn Future<Output = Result<bool, ApiError>> + Send + 'async_trait>>
where Self: 'async_trait, 'life0: 'async_trait,

Checks if the given validation outputs pass the acceptance criteria.
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fn session_index_for_child<'life0, 'async_trait>( &'life0 self, at: Hash, ) -> Pin<Box<dyn Future<Output = Result<SessionIndex, ApiError>> + Send + 'async_trait>>
where Self: 'async_trait, 'life0: 'async_trait,

Returns the session index expected at a child of the block. Read more
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fn validation_code<'life0, 'async_trait>( &'life0 self, at: Hash, para_id: ParaId, assumption: OccupiedCoreAssumption, ) -> Pin<Box<dyn Future<Output = Result<Option<ValidationCode>, ApiError>> + Send + 'async_trait>>
where Self: 'async_trait, 'life0: 'async_trait,

Fetch the validation code used by a para, making the given OccupiedCoreAssumption. Read more
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fn candidate_pending_availability<'life0, 'async_trait>( &'life0 self, at: Hash, para_id: ParaId, ) -> Pin<Box<dyn Future<Output = Result<Option<CommittedCandidateReceiptV2<Hash>>, ApiError>> + Send + 'async_trait>>
where Self: 'async_trait, 'life0: 'async_trait,

Get the receipt of a candidate pending availability. This returns Some for any paras assigned to occupied cores in availability_cores and None otherwise.
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fn candidate_events<'life0, 'async_trait>( &'life0 self, at: Hash, ) -> Pin<Box<dyn Future<Output = Result<Vec<CandidateEvent<Hash>>, ApiError>> + Send + 'async_trait>>
where Self: 'async_trait, 'life0: 'async_trait,

Get a vector of events concerning candidates that occurred within a block.
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fn dmq_contents<'life0, 'async_trait>( &'life0 self, at: Hash, recipient: ParaId, ) -> Pin<Box<dyn Future<Output = Result<Vec<InboundDownwardMessage<BlockNumber>>, ApiError>> + Send + 'async_trait>>
where Self: 'async_trait, 'life0: 'async_trait,

Get all the pending inbound messages in the downward message queue for a para.
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fn inbound_hrmp_channels_contents<'life0, 'async_trait>( &'life0 self, at: Hash, recipient: ParaId, ) -> Pin<Box<dyn Future<Output = Result<BTreeMap<ParaId, Vec<InboundHrmpMessage<BlockNumber>>>, ApiError>> + Send + 'async_trait>>
where Self: 'async_trait, 'life0: 'async_trait,

Get the contents of all channels addressed to the given recipient. Channels that have no messages in them are also included.
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fn validation_code_by_hash<'life0, 'async_trait>( &'life0 self, at: Hash, validation_code_hash: ValidationCodeHash, ) -> Pin<Box<dyn Future<Output = Result<Option<ValidationCode>, ApiError>> + Send + 'async_trait>>
where Self: 'async_trait, 'life0: 'async_trait,

Get the validation code from its hash.
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fn on_chain_votes<'life0, 'async_trait>( &'life0 self, at: Hash, ) -> Pin<Box<dyn Future<Output = Result<Option<ScrapedOnChainVotes<Hash>>, ApiError>> + Send + 'async_trait>>
where Self: 'async_trait, 'life0: 'async_trait,

Scrape dispute relevant from on-chain, backing votes and resolved disputes.
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fn session_info<'life0, 'async_trait>( &'life0 self, at: Hash, index: SessionIndex, ) -> Pin<Box<dyn Future<Output = Result<Option<SessionInfo>, ApiError>> + Send + 'async_trait>>
where Self: 'async_trait, 'life0: 'async_trait,

Get the session info for the given session, if stored. Read more
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fn session_executor_params<'life0, 'async_trait>( &'life0 self, at: Hash, session_index: SessionIndex, ) -> Pin<Box<dyn Future<Output = Result<Option<ExecutorParams>, ApiError>> + Send + 'async_trait>>
where Self: 'async_trait, 'life0: 'async_trait,

Get the execution environment parameter set by parent hash, if stored
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fn submit_pvf_check_statement<'life0, 'async_trait>( &'life0 self, at: Hash, stmt: PvfCheckStatement, signature: ValidatorSignature, ) -> Pin<Box<dyn Future<Output = Result<(), ApiError>> + Send + 'async_trait>>
where Self: 'async_trait, 'life0: 'async_trait,

Submits a PVF pre-checking statement into the transaction pool. Read more
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fn pvfs_require_precheck<'life0, 'async_trait>( &'life0 self, at: Hash, ) -> Pin<Box<dyn Future<Output = Result<Vec<ValidationCodeHash>, ApiError>> + Send + 'async_trait>>
where Self: 'async_trait, 'life0: 'async_trait,

Returns code hashes of PVFs that require pre-checking by validators in the active set. Read more
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fn validation_code_hash<'life0, 'async_trait>( &'life0 self, at: Hash, para_id: ParaId, assumption: OccupiedCoreAssumption, ) -> Pin<Box<dyn Future<Output = Result<Option<ValidationCodeHash>, ApiError>> + Send + 'async_trait>>
where Self: 'async_trait, 'life0: 'async_trait,

Fetch the hash of the validation code used by a para, making the given OccupiedCoreAssumption. Read more
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fn current_epoch<'life0, 'async_trait>( &'life0 self, at: Hash, ) -> Pin<Box<dyn Future<Output = Result<Epoch, ApiError>> + Send + 'async_trait>>
where Self: 'async_trait, 'life0: 'async_trait,

Returns information regarding the current epoch.
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fn authorities<'life0, 'async_trait>( &'life0 self, at: Hash, ) -> Pin<Box<dyn Future<Output = Result<Vec<AuthorityDiscoveryId>, ApiError>> + Send + 'async_trait>>
where Self: 'async_trait, 'life0: 'async_trait,

Retrieve authority identifiers of the current and next authority set.
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fn api_version_parachain_host<'life0, 'async_trait>( &'life0 self, at: Hash, ) -> Pin<Box<dyn Future<Output = Result<Option<u32>, ApiError>> + Send + 'async_trait>>
where Self: 'async_trait, 'life0: 'async_trait,

Parachain host API version
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fn disputes<'life0, 'async_trait>( &'life0 self, at: Hash, ) -> Pin<Box<dyn Future<Output = Result<Vec<(SessionIndex, CandidateHash, DisputeState<BlockNumber>)>, ApiError>> + Send + 'async_trait>>
where Self: 'async_trait, 'life0: 'async_trait,

Returns all onchain disputes. This is a staging method! Do not use on production runtimes!
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fn unapplied_slashes<'life0, 'async_trait>( &'life0 self, at: Hash, ) -> Pin<Box<dyn Future<Output = Result<Vec<(SessionIndex, CandidateHash, PendingSlashes)>, ApiError>> + Send + 'async_trait>>
where Self: 'async_trait, 'life0: 'async_trait,

Returns a list of validators that lost a past session dispute and need to be slashed. Read more
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fn key_ownership_proof<'life0, 'async_trait>( &'life0 self, at: Hash, validator_id: ValidatorId, ) -> Pin<Box<dyn Future<Output = Result<Option<OpaqueKeyOwnershipProof>, ApiError>> + Send + 'async_trait>>
where Self: 'async_trait, 'life0: 'async_trait,

Returns a merkle proof of a validator session key in a past session. Read more
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fn submit_report_dispute_lost<'life0, 'async_trait>( &'life0 self, at: Hash, dispute_proof: DisputeProof, key_ownership_proof: OpaqueKeyOwnershipProof, ) -> Pin<Box<dyn Future<Output = Result<Option<()>, ApiError>> + Send + 'async_trait>>
where Self: 'async_trait, 'life0: 'async_trait,

Submits an unsigned extrinsic to slash validators who lost a dispute about a candidate of a past session. Read more
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fn minimum_backing_votes<'life0, 'async_trait>( &'life0 self, at: Hash, session_index: SessionIndex, ) -> Pin<Box<dyn Future<Output = Result<u32, ApiError>> + Send + 'async_trait>>
where Self: 'async_trait, 'life0: 'async_trait,

Get the minimum number of backing votes.
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fn disabled_validators<'life0, 'async_trait>( &'life0 self, at: Hash, ) -> Pin<Box<dyn Future<Output = Result<Vec<ValidatorIndex>, ApiError>> + Send + 'async_trait>>
where Self: 'async_trait, 'life0: 'async_trait,

Gets the disabled validators at a specific block height
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fn async_backing_params<'life0, 'async_trait>( &'life0 self, at: Hash, ) -> Pin<Box<dyn Future<Output = Result<AsyncBackingParams, ApiError>> + Send + 'async_trait>>
where Self: 'async_trait, 'life0: 'async_trait,

Returns candidate’s acceptance limitations for asynchronous backing for a relay parent.
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fn para_backing_state<'life0, 'async_trait>( &'life0 self, at: Hash, para_id: ParaId, ) -> Pin<Box<dyn Future<Output = Result<Option<BackingState>, ApiError>> + Send + 'async_trait>>
where Self: 'async_trait, 'life0: 'async_trait,

Returns the state of parachain backing for a given para. This is a staging method! Do not use on production runtimes!
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fn node_features<'life0, 'async_trait>( &'life0 self, at: Hash, ) -> Pin<Box<dyn Future<Output = Result<NodeFeatures, ApiError>> + Send + 'async_trait>>
where Self: 'async_trait, 'life0: 'async_trait,

Get the node features.
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fn claim_queue<'life0, 'async_trait>( &'life0 self, at: Hash, ) -> Pin<Box<dyn Future<Output = Result<BTreeMap<CoreIndex, VecDeque<ParaId>>, ApiError>> + Send + 'async_trait>>
where Self: 'async_trait, 'life0: 'async_trait,

Fetch the ClaimQueue from scheduler pallet
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fn candidates_pending_availability<'life0, 'async_trait>( &'life0 self, at: Hash, para_id: ParaId, ) -> Pin<Box<dyn Future<Output = Result<Vec<CommittedCandidateReceiptV2<Hash>>, ApiError>> + Send + 'async_trait>>
where Self: 'async_trait, 'life0: 'async_trait,

Get the receipts of all candidates pending availability for a ParaId.

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fn pipe_deref_mut<'a, T, R>( &'a mut self, func: impl FnOnce(&'a mut T) -> R, ) -> R
where Self: DerefMut<Target = T> + Deref, T: 'a + ?Sized, R: 'a,

Mutably borrows self, then passes self.deref_mut() into the pipe function.
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impl<T> Pointable for T

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const ALIGN: usize = _

The alignment of pointer.
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type Init = T

The type for initializers.
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unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more
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unsafe fn deref<'a>(ptr: usize) -> &'a T

Dereferences the given pointer. Read more
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unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

Mutably dereferences the given pointer. Read more
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unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. Read more
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impl<T> Same for T

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type Output = T

Should always be Self
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impl<T> SaturatedConversion for T

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fn saturated_from<T>(t: T) -> Self
where Self: UniqueSaturatedFrom<T>,

Convert from a value of T into an equivalent instance of Self. Read more
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fn saturated_into<T>(self) -> T
where Self: UniqueSaturatedInto<T>,

Consume self to return an equivalent value of T. Read more
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impl<T> SaturatedConversion for T

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fn saturated_from<T>(t: T) -> Self
where Self: UniqueSaturatedFrom<T>,

Convert from a value of T into an equivalent instance of Self. Read more
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fn saturated_into<T>(self) -> T
where Self: UniqueSaturatedInto<T>,

Consume self to return an equivalent value of T. Read more
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impl<SS, SP> SupersetOf<SS> for SP
where SS: SubsetOf<SP>,

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fn to_subset(&self) -> Option<SS>

The inverse inclusion map: attempts to construct self from the equivalent element of its superset. Read more
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fn is_in_subset(&self) -> bool

Checks if self is actually part of its subset T (and can be converted to it).
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fn to_subset_unchecked(&self) -> SS

Use with care! Same as self.to_subset but without any property checks. Always succeeds.
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fn from_subset(element: &SS) -> SP

The inclusion map: converts self to the equivalent element of its superset.
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impl<T> Tap for T

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fn tap(self, func: impl FnOnce(&Self)) -> Self

Immutable access to a value. Read more
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fn tap_mut(self, func: impl FnOnce(&mut Self)) -> Self

Mutable access to a value. Read more
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fn tap_borrow<B>(self, func: impl FnOnce(&B)) -> Self
where Self: Borrow<B>, B: ?Sized,

Immutable access to the Borrow<B> of a value. Read more
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fn tap_borrow_mut<B>(self, func: impl FnOnce(&mut B)) -> Self
where Self: BorrowMut<B>, B: ?Sized,

Mutable access to the BorrowMut<B> of a value. Read more
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fn tap_ref<R>(self, func: impl FnOnce(&R)) -> Self
where Self: AsRef<R>, R: ?Sized,

Immutable access to the AsRef<R> view of a value. Read more
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fn tap_ref_mut<R>(self, func: impl FnOnce(&mut R)) -> Self
where Self: AsMut<R>, R: ?Sized,

Mutable access to the AsMut<R> view of a value. Read more
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fn tap_deref<T>(self, func: impl FnOnce(&T)) -> Self
where Self: Deref<Target = T>, T: ?Sized,

Immutable access to the Deref::Target of a value. Read more
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fn tap_deref_mut<T>(self, func: impl FnOnce(&mut T)) -> Self
where Self: DerefMut<Target = T> + Deref, T: ?Sized,

Mutable access to the Deref::Target of a value. Read more
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fn tap_dbg(self, func: impl FnOnce(&Self)) -> Self

Calls .tap() only in debug builds, and is erased in release builds.
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fn tap_mut_dbg(self, func: impl FnOnce(&mut Self)) -> Self

Calls .tap_mut() only in debug builds, and is erased in release builds.
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fn tap_borrow_dbg<B>(self, func: impl FnOnce(&B)) -> Self
where Self: Borrow<B>, B: ?Sized,

Calls .tap_borrow() only in debug builds, and is erased in release builds.
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fn tap_borrow_mut_dbg<B>(self, func: impl FnOnce(&mut B)) -> Self
where Self: BorrowMut<B>, B: ?Sized,

Calls .tap_borrow_mut() only in debug builds, and is erased in release builds.
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fn tap_ref_dbg<R>(self, func: impl FnOnce(&R)) -> Self
where Self: AsRef<R>, R: ?Sized,

Calls .tap_ref() only in debug builds, and is erased in release builds.
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fn tap_ref_mut_dbg<R>(self, func: impl FnOnce(&mut R)) -> Self
where Self: AsMut<R>, R: ?Sized,

Calls .tap_ref_mut() only in debug builds, and is erased in release builds.
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fn tap_deref_dbg<T>(self, func: impl FnOnce(&T)) -> Self
where Self: Deref<Target = T>, T: ?Sized,

Calls .tap_deref() only in debug builds, and is erased in release builds.
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fn tap_deref_mut_dbg<T>(self, func: impl FnOnce(&mut T)) -> Self
where Self: DerefMut<Target = T> + Deref, T: ?Sized,

Calls .tap_deref_mut() only in debug builds, and is erased in release builds.
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impl<T> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T> TryConv for T

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fn try_conv<T>(self) -> Result<T, Self::Error>
where Self: TryInto<T>,

Attempts to convert self into T using TryInto<T>. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
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impl<T, U> TryIntoKey<U> for T
where U: TryFromKey<T>,

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type Error = <U as TryFromKey<T>>::Error

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fn try_into_key(self) -> Result<U, <U as TryFromKey<T>>::Error>

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impl<S, T> UncheckedInto<T> for S
where T: UncheckedFrom<S>,

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fn unchecked_into(self) -> T

The counterpart to unchecked_from.
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impl<S, T> UncheckedInto<T> for S
where T: UncheckedFrom<S>,

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fn unchecked_into(self) -> T

The counterpart to unchecked_from.
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impl<T, S> UniqueSaturatedInto<T> for S
where T: Bounded, S: TryInto<T>,

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fn unique_saturated_into(self) -> T

Consume self to return an equivalent value of T.
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impl<T, S> UniqueSaturatedInto<T> for S
where T: Bounded, S: TryInto<T>,

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fn unique_saturated_into(self) -> T

Consume self to return an equivalent value of T.
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impl<V, T> VZip<V> for T
where V: MultiLane<T>,

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fn vzip(self) -> V

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impl<T> WithSubscriber for T

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fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>
where S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a [WithDispatch] wrapper. Read more
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fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default Subscriber to this type, returning a [WithDispatch] wrapper. Read more
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impl<T> WithSubscriber for T

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fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>
where S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a WithDispatch wrapper. Read more
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fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default Subscriber to this type, returning a WithDispatch wrapper. Read more
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impl<T> JsonSchemaMaybe for T

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impl<T> MaybeSend for T
where T: Send,