Can be one of the following:
graph)Send object (to execute a node with the input provided)Send objectsGraph to send the command to. Supported values are:
A discriminator field used to identify the type of object. Must be populated when serializing.
Optional because it's not required to specify this when directly constructing a Command object.
Value to resume execution with. To be used together with interrupt.
Update to apply to the graph's state.