INNER CODE UNIT · Python

from_context

volfpeter/htmy · htmy/core.py:135

    def from_context(cls, context: Context, default: None) -> Self | None: ...

    @overload
    @classmethod
    def from_context(cls, context: Context, default: Self) -> Self: ...

    @classmethod
    def from_context(cls, context: Context, default: Self | None = _MISSING) -> Self | None:
        """
        Looks up an instance of this class from the given context.

        Arguments:
            context: The context the instance should be loaded from.
            default: The default to use if no instance is found in the context. If omitted,
                a `KeyError` is raised on absence.

        Raises:
            KeyError: If no instance was found and no `default` was given.

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