Determines the node's ports from the variable's kind. This is the default mode.@@@@`
This mode is valid for all variable kinds.
The port topology depends on the variable's kind:
For variables of kind VariableKind.Local or VariableKind.Input,
the node exposes an output port that provides the variable's value to connected nodes.
For variables of kind VariableKind.Output, the node exposes an input port.
Connect a value to this port to specify what the subgraph returns to the parent graph for this variable.