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Struct frame_system::CheckWeight

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pub struct CheckWeight<T: Config + Send + Sync>(/* private fields */);
Expand description

Block resource (weight) limit check.

§Transaction Validity

This extension does not influence any fields of TransactionValidity in case the transaction is valid.

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impl<T: Config + Send + Sync> CheckWeight<T>
where T::RuntimeCall: Dispatchable<Info = DispatchInfo, PostInfo = PostDispatchInfo>,

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pub fn new() -> Self

Creates new TransactionExtension to check weight of the extrinsic.

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pub fn do_validate( info: &DispatchInfoOf<T::RuntimeCall>, len: usize, ) -> Result<(ValidTransaction, u32), TransactionValidityError>

Do the validate checks. This can be applied to both signed and unsigned.

It only checks that the block weight and length limit will not exceed.

Returns the transaction validity and the next block length, to be used in prepare.

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pub fn do_prepare( info: &DispatchInfoOf<T::RuntimeCall>, len: usize, next_len: u32, ) -> Result<(), TransactionValidityError>

Do the pre-dispatch checks. This can be applied to both signed and unsigned.

It checks and notes the new weight and length.

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pub fn do_post_dispatch( info: &DispatchInfoOf<T::RuntimeCall>, post_info: &PostDispatchInfoOf<T::RuntimeCall>, ) -> Result<(), TransactionValidityError>

Trait Implementations§

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impl<T: Clone + Config + Send + Sync> Clone for CheckWeight<T>

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fn clone(&self) -> CheckWeight<T>

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<T: Config + Send + Sync> Debug for CheckWeight<T>

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more
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impl<T: Config + Send + Sync> Decode for CheckWeight<T>
where PhantomData<T>: Decode,

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fn decode<__CodecInputEdqy: Input>( __codec_input_edqy: &mut __CodecInputEdqy, ) -> Result<Self, Error>

Attempt to deserialise the value from input.
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fn decode_into<I>( input: &mut I, dst: &mut MaybeUninit<Self>, ) -> Result<DecodeFinished, Error>
where I: Input,

Attempt to deserialize the value from input into a pre-allocated piece of memory. Read more
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fn skip<I>(input: &mut I) -> Result<(), Error>
where I: Input,

Attempt to skip the encoded value from input. Read more
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fn encoded_fixed_size() -> Option<usize>

Returns the fixed encoded size of the type. Read more
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impl<T: Default + Config + Send + Sync> Default for CheckWeight<T>

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fn default() -> CheckWeight<T>

Returns the “default value” for a type. Read more
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impl<T: Config + Send + Sync> Encode for CheckWeight<T>
where PhantomData<T>: Encode,

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fn size_hint(&self) -> usize

If possible give a hint of expected size of the encoding. Read more
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fn encode_to<__CodecOutputEdqy: Output + ?Sized>( &self, __codec_dest_edqy: &mut __CodecOutputEdqy, )

Convert self to a slice and append it to the destination.
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fn encode(&self) -> Vec<u8>

Convert self to an owned vector.
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fn using_encoded<__CodecOutputReturn, __CodecUsingEncodedCallback: FnOnce(&[u8]) -> __CodecOutputReturn>( &self, f: __CodecUsingEncodedCallback, ) -> __CodecOutputReturn

Convert self to a slice and then invoke the given closure with it.
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fn encoded_size(&self) -> usize

Calculates the encoded size. Read more
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impl<T: PartialEq + Config + Send + Sync> PartialEq for CheckWeight<T>

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fn eq(&self, other: &CheckWeight<T>) -> bool

This method tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl<T: Config + Send + Sync> TransactionExtension<<T as Config>::RuntimeCall> for CheckWeight<T>
where T::RuntimeCall: Dispatchable<Info = DispatchInfo, PostInfo = PostDispatchInfo>,

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const IDENTIFIER: &'static str = "CheckWeight"

Unique identifier of this signed extension. Read more
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type Implicit = ()

Any additional data which was known at the time of transaction construction and can be useful in authenticating the transaction. This is determined dynamically in part from the on-chain environment using the implicit function and not directly contained in the transaction itself and therefore is considered “implicit”.
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type Pre = ()

The type that encodes information that can be passed from prepare to post_dispatch.
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type Val = u32

The type that encodes information that can be passed from validate to prepare.
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fn weight(&self, _: &T::RuntimeCall) -> Weight

The weight consumed by executing this extension instance fully during transaction dispatch.
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fn validate( &self, origin: T::RuntimeOrigin, _call: &T::RuntimeCall, info: &DispatchInfoOf<T::RuntimeCall>, len: usize, _self_implicit: Self::Implicit, _inherited_implication: &impl Encode, _source: TransactionSource, ) -> ValidateResult<Self::Val, T::RuntimeCall>

Validate a transaction for the transaction queue. Read more
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fn prepare( self, val: Self::Val, _origin: &T::RuntimeOrigin, _call: &T::RuntimeCall, info: &DispatchInfoOf<T::RuntimeCall>, len: usize, ) -> Result<Self::Pre, TransactionValidityError>

Do any pre-flight stuff for a transaction after validation. Read more
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fn post_dispatch_details( _pre: Self::Pre, info: &DispatchInfoOf<T::RuntimeCall>, post_info: &PostDispatchInfoOf<T::RuntimeCall>, _len: usize, _result: &DispatchResult, ) -> Result<Weight, TransactionValidityError>

Do any post-flight stuff for an extrinsic. Read more
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fn bare_validate( _call: &T::RuntimeCall, info: &DispatchInfoOf<T::RuntimeCall>, len: usize, ) -> TransactionValidity

Validation logic for bare extrinsics. Read more
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fn bare_validate_and_prepare( _call: &T::RuntimeCall, info: &DispatchInfoOf<T::RuntimeCall>, len: usize, ) -> Result<(), TransactionValidityError>

All pre-flight logic run before dispatching bare extrinsics. Read more
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fn bare_post_dispatch( info: &DispatchInfoOf<T::RuntimeCall>, post_info: &mut PostDispatchInfoOf<T::RuntimeCall>, _len: usize, _result: &DispatchResult, ) -> Result<(), TransactionValidityError>

Post dispatch logic run after dispatching bare extrinsics. Read more
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fn implicit(&self) -> Result<Self::Implicit, TransactionValidityError>

Determine any additional data which was known at the time of transaction construction and can be useful in authenticating the transaction. The expected usage of this is to include in any data which is signed and verified as part of transaction validation. Also perform any pre-signature-verification checks and return an error if needed.
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fn metadata() -> Vec<TransactionExtensionMetadata>

Returns the metadata for this extension. Read more
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fn post_dispatch( pre: Self::Pre, info: &<Call as Dispatchable>::Info, post_info: &mut <Call as Dispatchable>::PostInfo, len: usize, result: &Result<(), DispatchError>, ) -> Result<(), TransactionValidityError>

A wrapper for post_dispatch_details that refunds the unspent weight consumed by this extension into the post dispatch information. Read more
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impl<T> TypeInfo for CheckWeight<T>
where PhantomData<T>: TypeInfo + 'static, T: Config + Send + Sync + 'static,

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type Identity = CheckWeight<T>

The type identifying for which type info is provided. Read more
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fn type_info() -> Type

Returns the static type identifier for Self.
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impl<T: Config + Send + Sync> EncodeLike for CheckWeight<T>
where PhantomData<T>: Encode,

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impl<T: Eq + Config + Send + Sync> Eq for CheckWeight<T>

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impl<T: Config + Send + Sync> StructuralPartialEq for CheckWeight<T>

Auto Trait Implementations§

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impl<T> Freeze for CheckWeight<T>

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impl<T> RefUnwindSafe for CheckWeight<T>
where T: RefUnwindSafe,

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impl<T> Send for CheckWeight<T>

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impl<T> Sync for CheckWeight<T>

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impl<T> Unpin for CheckWeight<T>
where T: Unpin,

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impl<T> UnwindSafe for CheckWeight<T>
where T: UnwindSafe,

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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fn checked_from<T>(t: T) -> Option<Self>
where Self: TryFrom<T>,

Convert from a value of T into an equivalent instance of Option<Self>. Read more
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where Self: TryInto<T>,

Consume self to return Some equivalent value of Option<T>. Read more
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where T: Default + Eq + PartialEq,

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fn is_clear(&self) -> bool

True iff no bits are set.
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fn clear() -> T

Return the value of Self that is clear.
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impl<T> CloneToUninit for T
where T: Clone,

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default unsafe fn clone_to_uninit(&self, dst: *mut T)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dst. Read more
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fn conv<T>(self) -> T
where Self: Into<T>,

Converts self into T using Into<T>. Read more
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impl<T> DecodeAll for T
where T: Decode,

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fn decode_all(input: &mut &[u8]) -> Result<T, Error>

Decode Self and consume all of the given input data. Read more
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impl<T> DecodeLimit for T
where T: Decode,

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fn decode_all_with_depth_limit( limit: u32, input: &mut &[u8], ) -> Result<T, Error>

Decode Self and consume all of the given input data. Read more
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fn decode_with_depth_limit<I>(limit: u32, input: &mut I) -> Result<T, Error>
where I: Input,

Decode Self with the given maximum recursion depth and advance input by the number of bytes consumed. Read more
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impl<T, Call> DispatchTransaction<Call> for T
where T: TransactionExtension<Call>, Call: Dispatchable + Encode, <Call as Dispatchable>::RuntimeOrigin: AsTransactionAuthorizedOrigin,

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type Origin = <Call as Dispatchable>::RuntimeOrigin

The origin type of the transaction.
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type Info = <Call as Dispatchable>::Info

The info type.
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type Result = Result<Result<<Call as Dispatchable>::PostInfo, DispatchErrorWithPostInfo<<Call as Dispatchable>::PostInfo>>, TransactionValidityError>

The resultant type.
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type Val = <T as TransactionExtension<Call>>::Val

The Val of the extension.
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type Pre = <T as TransactionExtension<Call>>::Pre

The Pre of the extension.
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fn validate_only( &self, origin: <T as DispatchTransaction<Call>>::Origin, call: &Call, info: &<Call as Dispatchable>::Info, len: usize, source: TransactionSource, ) -> Result<(ValidTransaction, <T as TransactionExtension<Call>>::Val, <T as DispatchTransaction<Call>>::Origin), TransactionValidityError>

Just validate a transaction. Read more
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fn validate_and_prepare( self, origin: <T as DispatchTransaction<Call>>::Origin, call: &Call, info: &<Call as Dispatchable>::Info, len: usize, ) -> Result<(<T as TransactionExtension<Call>>::Pre, <T as DispatchTransaction<Call>>::Origin), TransactionValidityError>

Validate and prepare a transaction, ready for dispatch.
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fn dispatch_transaction( self, origin: <Call as Dispatchable>::RuntimeOrigin, call: Call, info: &<Call as Dispatchable>::Info, len: usize, ) -> <T as DispatchTransaction<Call>>::Result

Dispatch a transaction with the given base origin and call.
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fn test_run( self, origin: <T as DispatchTransaction<Call>>::Origin, call: &Call, info: &<T as DispatchTransaction<Call>>::Info, len: usize, substitute: impl FnOnce(<T as DispatchTransaction<Call>>::Origin) -> Result<<Call as Dispatchable>::PostInfo, DispatchErrorWithPostInfo<<Call as Dispatchable>::PostInfo>>, ) -> <T as DispatchTransaction<Call>>::Result

Do everything which would be done in a dispatch_transaction, but instead of executing the call, execute substitute instead. Since this doesn’t actually dispatch the call, it doesn’t need to consume it and so call can be passed as a reference.
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impl<T> DynClone for T
where T: Clone,

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fn __clone_box(&self, _: Private) -> *mut ()

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impl<Q, K> Equivalent<K> for Q
where Q: Eq + ?Sized, K: Borrow<Q> + ?Sized,

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fn equivalent(&self, key: &K) -> bool

Compare self to key and return true if they are equal.
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impl<Q, K> Equivalent<K> for Q
where Q: Eq + ?Sized, K: Borrow<Q> + ?Sized,

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fn equivalent(&self, key: &K) -> bool

Checks if this value is equivalent to the given key. Read more
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impl<Q, K> Equivalent<K> for Q
where Q: Eq + ?Sized, K: Borrow<Q> + ?Sized,

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fn equivalent(&self, key: &K) -> bool

Checks if this value is equivalent to the given key. Read more
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impl<Q, K> Equivalent<K> for Q
where Q: Eq + ?Sized, K: Borrow<Q> + ?Sized,

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fn equivalent(&self, key: &K) -> bool

Compare self to key and return true if they are equal.
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where Self: Binary,

Causes self to use its Binary implementation when Debug-formatted.
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where Self: Display,

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where Self: LowerExp,

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where Self: LowerHex,

Causes self to use its LowerHex implementation when Debug-formatted.
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where Self: Octal,

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where Self: UpperExp,

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where Self: UpperHex,

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where &'a Self: for<'a> IntoIterator,

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fn blake2_128(&self) -> [u8; 16]

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fn to_keyed_vec(&self, prepend_key: &[u8]) -> Vec<u8>

Return an encoding of Self prepended by given slice.
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const ALIGN: usize = _

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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<S> Codec for S
where S: Decode + Encode,

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impl<T> EncodeLike<&&T> for T
where T: Encode,

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impl<T> EncodeLike<&T> for T
where T: Encode,

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impl<T> EncodeLike<&mut T> for T
where T: Encode,

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impl<T> EncodeLike<Arc<T>> for T
where T: Encode,

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impl<T> EncodeLike<Box<T>> for T
where T: Encode,

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impl<'a, T> EncodeLike<Cow<'a, T>> for T
where T: ToOwned + Encode,

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impl<T> EncodeLike<Rc<T>> for T
where T: Encode,

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impl<S> FullCodec for S
where S: Decode + FullEncode,

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impl<S> FullEncode for S
where S: Encode + EncodeLike,

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impl<T> JsonSchemaMaybe for T

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impl<T> MaybeDebug for T
where T: Debug,

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impl<T> MaybeRefUnwindSafe for T
where T: RefUnwindSafe,

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impl<T> MaybeRefUnwindSafe for T
where T: RefUnwindSafe,

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impl<T> Member for T
where T: Send + Sync + Debug + Eq + PartialEq + Clone + 'static,

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impl<T> Parameter for T
where T: Codec + EncodeLike + Clone + Eq + Debug + TypeInfo,

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impl<T> StaticTypeInfo for T
where T: TypeInfo + 'static,