New instantiates the firebolt executor based on the passed functional options.

RegisterBuiltinNodeTypes initializes the node registry with all built-in node types.

RegisterBuiltinSourceTypes initializes the node registry with all built-in source types.

WithConfig is an Opt that sets up an Executor with c.

WithConfigFile is an option type that parses a config file and sets up an Executor with the file.

Executor is the main processing engine in firebolt.

NoOpMessageReceiver is a message receiver that does, well, nothing.

Opt is an option type that can be passed to New to tell it how to set up the returned *Executor.