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Schema

Enum Schema 

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#[repr(u16)]
pub enum Schema {
Show 20 variants Mbo = 0, Mbp1 = 1, Mbp10 = 2, Tbbo = 3, Trades = 4, Ohlcv1S = 5, Ohlcv1M = 6, Ohlcv1H = 7, Ohlcv1D = 8, Definition = 9, Statistics = 10, Status = 11, Imbalance = 12, OhlcvEod = 13, Cmbp1 = 14, Cbbo1S = 15, Cbbo1M = 16, Tcbbo = 17, Bbo1S = 18, Bbo1M = 19,
}
Expand description

A data record schema.

Each schema has a particular record type associated with it.

See List of supported market data schemas for an overview of the differences and use cases of each schema.

Variants§

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Mbo = 0

Market by order.

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Mbp1 = 1

Market by price with a book depth of 1.

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Mbp10 = 2

Market by price with a book depth of 10.

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Tbbo = 3

All trade events with the best bid and offer (BBO) immediately before the effect of the trade.

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Trades = 4

All trade events.

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Ohlcv1S = 5

Open, high, low, close, and volume at a one-second interval.

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Ohlcv1M = 6

Open, high, low, close, and volume at a one-minute interval.

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Ohlcv1H = 7

Open, high, low, close, and volume at an hourly interval.

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Ohlcv1D = 8

Open, high, low, close, and volume at a daily interval based on the UTC date.

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Definition = 9

Instrument definitions.

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Statistics = 10

Additional data disseminated by publishers.

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Status = 11

Trading status events.

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Imbalance = 12

Auction imbalance events.

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OhlcvEod = 13

Open, high, low, close, and volume at a daily cadence based on the end of the trading session.

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Cmbp1 = 14

Consolidated best bid and offer.

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Cbbo1S = 15

Consolidated best bid and offer subsampled at one-second intervals, in addition to trades.

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Cbbo1M = 16

Consolidated best bid and offer subsampled at one-minute intervals, in addition to trades.

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Tcbbo = 17

All trade events with the consolidated best bid and offer (CBBO) immediately before the effect of the trade.

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Bbo1S = 18

Best bid and offer subsampled at one-second intervals, in addition to trades.

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Bbo1M = 19

Best bid and offer subsampled at one-minute intervals, in addition to trades.

Implementations§

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impl Schema

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pub fn interval(self) -> Option<Duration>

Returns the interval associated with the Schema if it’s a subsampled schema, otherwise None.

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impl Schema

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pub const COUNT: usize = 20

The number of Schema variants.

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pub const fn as_str(&self) -> &'static str

Converts the Schema to its str representation.

Trait Implementations§

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impl AsRef<str> for Schema

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fn as_ref(&self) -> &str

Converts this type into a shared reference of the (usually inferred) input type.
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impl Clone for Schema

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fn clone(&self) -> Schema

Returns a duplicate 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 Debug for Schema

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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<'de> Deserialize<'de> for Schema

Available on crate feature serde only.
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fn deserialize<D: Deserializer<'de>>(deserializer: D) -> Result<Self, D::Error>

Deserialize this value from the given Serde deserializer. Read more
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impl Display for Schema

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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 From<Schema> for RType

Get the corresponding rtype for the given schema.

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fn from(schema: Schema) -> Self

Converts to this type from the input type.
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impl From<Schema> for u16

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fn from(enum_value: Schema) -> Self

Converts to this type from the input type.
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impl FromStr for Schema

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type Err = Error

The associated error which can be returned from parsing.
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fn from_str(s: &str) -> Result<Self, Self::Err>

Parses a string s to return a value of this type. Read more
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impl Hash for Schema

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fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher. Read more
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fn hash_slice<H>(data: &[Self], state: &mut H)
where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher. Read more
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impl IntoEnumIterator for Schema

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impl<'py> IntoPyObject<'py> for Schema

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type Target = Schema

The Python output type
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type Output = Bound<'py, <Schema as IntoPyObject<'py>>::Target>

The smart pointer type to use. Read more
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type Error = PyErr

The type returned in the event of a conversion error.
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fn into_pyobject( self, py: Python<'py>, ) -> Result<<Self as IntoPyObject<'_>>::Output, <Self as IntoPyObject<'_>>::Error>

Performs the conversion.
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impl Ord for Schema

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fn cmp(&self, other: &Schema) -> Ordering

This method returns an Ordering between self and other. Read more
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fn max(self, other: Self) -> Self
where Self: Sized,

Compares and returns the maximum of two values. Read more
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fn min(self, other: Self) -> Self
where Self: Sized,

Compares and returns the minimum of two values. Read more
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fn clamp(self, min: Self, max: Self) -> Self
where Self: Sized,

Restrict a value to a certain interval. Read more
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impl PartialEq for Schema

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fn eq(&self, other: &Schema) -> bool

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl PartialOrd for Schema

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fn partial_cmp(&self, other: &Schema) -> Option<Ordering>

This method returns an ordering between self and other values if one exists. Read more
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fn lt(&self, other: &Rhs) -> bool

Tests less than (for self and other) and is used by the < operator. Read more
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fn le(&self, other: &Rhs) -> bool

Tests less than or equal to (for self and other) and is used by the <= operator. Read more
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fn gt(&self, other: &Rhs) -> bool

Tests greater than (for self and other) and is used by the > operator. Read more
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fn ge(&self, other: &Rhs) -> bool

Tests greater than or equal to (for self and other) and is used by the >= operator. Read more
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impl PyClass for Schema

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type Frozen = False

Whether the pyclass is frozen. Read more
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impl PyClassImpl for Schema

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const IS_BASETYPE: bool = false

#[pyclass(subclass)]
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const IS_SUBCLASS: bool = false

#[pyclass(extends=…)]
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const IS_MAPPING: bool = false

#[pyclass(mapping)]
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const IS_SEQUENCE: bool = false

#[pyclass(sequence)]
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const IS_IMMUTABLE_TYPE: bool = false

#[pyclass(immutable_type)]
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const RAW_DOC: &'static CStr = /// A data record schema. /// /// Each schema has a particular [record](crate::record) type associated with it. /// /// See [List of supported market data schemas](https://databento.com/docs/schemas-and-data-formats/whats-a-schema) /// for an overview of the differences and use cases of each schema.

Docstring for the class provided on the struct or enum. Read more
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const DOC: &'static CStr

Fully rendered class doc, including the text_signature if a constructor is defined. Read more
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type BaseType = PyAny

Base class
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type ThreadChecker = SendablePyClass<Schema>

This handles following two situations: Read more
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type PyClassMutability = <<PyAny as PyClassBaseType>::PyClassMutability as PyClassMutability>::MutableChild

Immutable or mutable
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type Dict = PyClassDummySlot

Specify this class has #[pyclass(dict)] or not.
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type WeakRef = PyClassDummySlot

Specify this class has #[pyclass(weakref)] or not.
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type BaseNativeType = PyAny

The closest native ancestor. This is PyAny by default, and when you declare #[pyclass(extends=PyDict)], it’s PyDict.
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fn items_iter() -> PyClassItemsIter

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fn lazy_type_object() -> &'static LazyTypeObject<Self>

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fn dict_offset() -> Option<isize>

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fn weaklist_offset() -> Option<isize>

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impl PyClassNewTextSignature for Schema

Available on crate feature python only.
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const TEXT_SIGNATURE: &'static str = "(value)"

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impl PyClass__eq__SlotFragment<Schema> for PyClassImplCollector<Schema>

Available on crate feature python only.
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unsafe fn __eq__( self, py: Python<'_>, _raw_slf: *mut PyObject, arg0: *mut PyObject, ) -> PyResult<*mut PyObject>

Safety: _slf and _other must be valid non-null Python objects Read more
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impl PyMethods<Schema> for PyClassImplCollector<Schema>

Available on crate feature python only.
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fn py_methods(self) -> &'static PyClassItems

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impl PyTypeInfo for Schema

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const NAME: &'static str = "Schema"

Class name.
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const MODULE: Option<&'static str>

Module name, if any.
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fn type_object_raw(py: Python<'_>) -> *mut PyTypeObject

Returns the PyTypeObject instance for this type.
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fn type_object(py: Python<'_>) -> Bound<'_, PyType>

Returns the safe abstraction over the type object.
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fn is_type_of(object: &Bound<'_, PyAny>) -> bool

Checks if object is an instance of this type or a subclass of this type.
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fn is_exact_type_of(object: &Bound<'_, PyAny>) -> bool

Checks if object is an instance of this type.
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impl Serialize for Schema

Available on crate feature serde only.
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fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
where S: Serializer,

Serialize this value into the given Serde serializer. Read more
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impl TryFrom<u16> for Schema

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type Error = TryFromPrimitiveError<Schema>

The type returned in the event of a conversion error.
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fn try_from(number: u16) -> Result<Self, TryFromPrimitiveError<Self>>

Performs the conversion.
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impl TryFromPrimitive for Schema

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impl WritePyRepr for Schema

Available on crate feature python only.
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fn write_py_repr(&self, s: &mut String) -> Result

Writes a Python-style string representation to s. Read more
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const SHOULD_FLATTEN: bool = false

Whether this type’s fields should be flattened into the parent repr.
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impl Copy for Schema

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impl Eq for Schema

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impl ExtractPyClassWithClone for Schema

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impl StructuralPartialEq for Schema

Auto Trait Implementations§

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impl Freeze for Schema

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impl RefUnwindSafe for Schema

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impl Send for Schema

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impl Sync for Schema

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impl Unpin for Schema

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impl UnwindSafe for Schema

Blanket Implementations§

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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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impl<T> BorrowMut<T> for T
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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impl<T> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<'a, 'py, T> FromPyObject<'a, 'py> for T
where T: PyClass + Clone + ExtractPyClassWithClone,

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type Error = PyClassGuardError<'a, 'py>

The type returned in the event of a conversion error. Read more
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fn extract( obj: Borrowed<'a, 'py, PyAny>, ) -> Result<T, <T as FromPyObject<'a, 'py>>::Error>

Extracts Self from the bound smart pointer obj. Read more
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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<'py, T> IntoPyObjectExt<'py> for T
where T: IntoPyObject<'py>,

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fn into_bound_py_any(self, py: Python<'py>) -> Result<Bound<'py, PyAny>, PyErr>

Converts self into an owned Python object, dropping type information.
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fn into_py_any(self, py: Python<'py>) -> Result<Py<PyAny>, PyErr>

Converts self into an owned Python object, dropping type information and unbinding it from the 'py lifetime.
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fn into_pyobject_or_pyerr(self, py: Python<'py>) -> Result<Self::Output, PyErr>

Converts self into a Python object. Read more
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impl<T> PyErrArguments for T
where T: for<'py> IntoPyObject<'py> + Send + Sync,

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fn arguments(self, py: Python<'_>) -> Py<PyAny>

Arguments for exception
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impl<T> PyTypeCheck for T
where T: PyTypeInfo,

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const NAME: &'static str = T::NAME

👎Deprecated since 0.27.0: Use ::classinfo_object() instead and format the type name at runtime. Note that using built-in cast features is often better than manual PyTypeCheck usage.
Name of self. This is used in error messages, for example.
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fn type_check(object: &Bound<'_, PyAny>) -> bool

Checks if object is an instance of Self, which may include a subtype. Read more
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fn classinfo_object(py: Python<'_>) -> Bound<'_, PyAny>

Returns the expected type as a possible argument for the isinstance and issubclass function. Read more
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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> ToString for T
where T: Display + ?Sized,

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fn to_string(&self) -> String

Converts the given value to a String. 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> DeserializeOwned for T
where T: for<'de> Deserialize<'de>,

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impl<'py, T> FromPyObjectOwned<'py> for T
where T: for<'a> FromPyObject<'a, 'py>,

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