schema

Classes:

Name	Description
LazyValue	A base class for lazy evaluation.
Symbol	A symbol that represents a variable in the lazy evaluation.
LazyOperator	A base class for lazy operators.

LazyValue

Bases: ABC

A base class for lazy evaluation.

Methods:

Name	Description
eval	Evaluate the lazy value with the given values.
partial	Partially evaluate the lazy value with the given values.
ready	Check if the lazy value is ready to be evaluated.
keys	Get the keys that are required to evaluate the lazy value.

eval

eval(**values: Any) -> Any

Evaluate the lazy value with the given values.

Parameters:

Name	Type	Description	Default
**values	Any	Values to be used for evaluation.	{}

Returns:

Name	Type	Description
Any	Any	The evaluated value.

Raises:

Type	Description
ValueError	If the lazy value is not ready to be evaluated.

partial abstractmethod

partial(**values: Any) -> Any

Partially evaluate the lazy value with the given values.

Parameters:

Name	Type	Description	Default
**values	Any	Values to be used for evaluation.	{}

Returns:

Name	Type	Description
Any	Any	The partially evaluated value.

ready

ready() -> bool

Check if the lazy value is ready to be evaluated.

keys abstractmethod

keys() -> set[str]

Get the keys that are required to evaluate the lazy value.

Symbol dataclass

Symbol(key: str)

Bases: LazyValue

A symbol that represents a variable in the lazy evaluation.

Such as x, y, z, etc.

Methods:

Name	Description
eval	Evaluate the lazy value with the given values.
ready	Check if the lazy value is ready to be evaluated.
partial	Partially evaluate the lazy value with the given values.
keys	Get the keys that are required to evaluate the lazy value.

eval

eval(**values: Any) -> Any

Evaluate the lazy value with the given values.

Parameters:

Name	Type	Description	Default
**values	Any	Values to be used for evaluation.	{}

Returns:

Name	Type	Description
Any	Any	The evaluated value.

Raises:

Type	Description
ValueError	If the lazy value is not ready to be evaluated.

ready

ready() -> bool

Check if the lazy value is ready to be evaluated.

partial

partial(**values: Any) -> Any

Partially evaluate the lazy value with the given values.

Parameters:

Name	Type	Description	Default
**values	Any	Values to be used for evaluation.	{}

Returns:

Name	Type	Description
Any	Any	The partially evaluated value.

keys

keys() -> set[str]

Get the keys that are required to evaluate the lazy value.

LazyOperator dataclass

LazyOperator(*, left: Any = None, right: Any = None)

Bases: LazyValue

A base class for lazy operators.

Such as Add, Sub, Mul, TrueDiv, Pow, Neg, Pos, Abs, Mod, FloorDiv.

Methods:

Name	Description
eval	Evaluate the lazy value with the given values.
ready	Check if the lazy value is ready to be evaluated.
partial	Partially evaluate the lazy value with the given values.
keys	Get the keys that are required to evaluate the lazy value.

eval

eval(**values: Any) -> Any

Evaluate the lazy value with the given values.

Parameters:

Name	Type	Description	Default
**values	Any	Values to be used for evaluation.	{}

Returns:

Name	Type	Description
Any	Any	The evaluated value.

Raises:

Type	Description
ValueError	If the lazy value is not ready to be evaluated.

ready

ready() -> bool

Check if the lazy value is ready to be evaluated.

partial

partial(**values: Any) -> Any

Partially evaluate the lazy value with the given values.

Parameters:

Name	Type	Description	Default
**values	Any	Values to be used for evaluation.	{}

Returns:

Name	Type	Description
Any	Any	The partially evaluated value.

keys

keys() -> set[str]

Get the keys that are required to evaluate the lazy value.