ray.dag.output_node.MultiOutputNode.apply_functional

MultiOutputNode.apply_functional(source_input_list: Any, predicate_fn: Callable, apply_fn: Callable)

Apply a given function to DAGNodes in source_input_list, and return the replaced inputs without mutating or coping any DAGNode.

Parameters:

• source_input_list – Source inputs to extract and apply function on all children DAGNode instances.

• predicate_fn – Applied on each DAGNode instance found and determine if we should apply function to it. Can be used to filter node types.

• apply_fn –

  Function to apply on the node on bound attributes. Example:

  apply_fn = lambda node: node._get_serve_deployment_handle(
      node._deployment, node._bound_other_args_to_resolve
  )
  

Returns:

Outputs of apply_fn on DAGNodes in

source_input_list that passes predicate_fn.

Return type:

replaced_inputs