Snak

class Snak(*args, **kwargs)[source]

Bases: ClosedTerm

Abstract base class for snaks.

template_class: alias of SnakTemplate

variable_class: alias of SnakVariable

classmethod check(arg: Any, function: Callable[[...], Any] | str | None = None, name: str | None = None, position: int | None = None) → Self[source]

Coerces arg into an instance of this class.

If arg cannot be coerced, raises an error.

Parameters:

arg – Value.
function – Function or function name.
name – Argument name.
position – Argument position.

Returns:

Object.

property property: Property: The property of snak.

get_property() → Property[source]

Gets the property of snak.

Returns:: Property.

class SnakTemplate(*args, **kwargs)[source]

Bases: Template

Abstract base class for snak templates.

object_class: alias of Snak

property property: PropertyTemplate | PropertyVariable | Property: The property of snak template.

get_property() → PropertyTemplate | PropertyVariable | Property[source]

Gets the property of snak template.

Returns:: Property, property template, or property variable.

class SnakVariable(name: str, variable_class: type[Variable] | type[Term] | None = None)[source]

Bases: Variable

Snak variable.

Parameters:: name – Name.

object_class: alias of Snak