flowno.decorators.node_meta_single_dec

Node meta decoration for single-output Flowno nodes.

This module provides the node_meta_single_dec class, which handles the decorator logic for single-output node cases in the Flowno framework: - @node() - @node(multiple_outputs=False) - @node(stream_in=[…])

This is an internal implementation detail used by the flowno.decorators.node decorator, not meant to be used directly. See the node decorator documentation for complete usage information and examples.

class flowno.decorators.node_meta_single_dec.node_meta_single_dec(stream_in: list[str] = [])

Handles the decorator logic for single-output node cases.

This class is returned by the @node() function when called with parameters, and implements __call__ to handle the actual function decoration. It creates appropriate DraftNode subclasses based on the decorated function or class and specified parameters.

Parameters:

stream_in – List of parameter names that should be treated as streaming inputs

Returns:

When called with a function or class, returns a DraftNode subclass factory for that function or class

__call__(func_or_cls: Callable[[], Coroutine[object, object, _ReturnT_co]]) → type[MonoNode0[tuple[_ReturnT_co]]]

Apply the decorator to the given function or class.

This method is called when the decorator is applied to a function or class. It delegates to either create_class_node_subclass_single or create_func_node_factory_single depending on whether the decorated object is a class or function.

Parameters:

func_or_cls – The function or class to transform into a node

Returns:

A DraftNode subclass factory for the decorated function or class

__init__(stream_in: list[str] = []) → None