Create a model

The model is built based on the graph and the desired handler. A mmodel handler is an execution method that handles the node execution order and intermediate value flow. The resulting instance is a callable that behaves like a function. The resulting model copies and freezes the graph, making it immutable. A handler class is passed to the handler argument, and any additional arguments of the handler can be passed as a dictionary to the handler_kwargs argument.

# see the Graph page on how to build a graph

from mmodel import MemHandler

model = Model(name='model', graph=G, handler=MemHandler)

Note

The graph cannot have cycles.

The model determines the parameter for the model instance.

Extra return variables

The default return of the model is the output of the terminal nodes. To output intermediate variables, use “returns” to define additional output for the model. All other handler parameters can be directly passed as keyword arguments.

See handler reference for all available handlers.