titus.producer.chain.engine¶

titus.producer.chain.engine(pfas, name=None, randseed=None, doc=None, version=None, metadata={}, options={}, tryYaml=False, verbose=False, sharedState=None, multiplicity=1, style='pure', debug=False)[source]¶

Create a single PFA from a chained workflow, returning the result as an executable scoring engine.

Parameters:	pfas (list of titus.pfaast.EngineConfig, Pythonized JSON, or JSON strings) – PFA documents for which the output of document i is the input to document i + 1 check (bool) – test the chained PFA for validity name (string or None) – optional name for the chained PFA randseed (integer or None) – optional random number seed for the chained PFA doc (string or None) – optional documentation string for the chained PFA version (integer or None) – optional version number for the chained PFA metadata (dict of strings) – metadata for the chained PFA (default is {}) options (dict of Pythonized JSON) – implementation options for the chained PFA (default is {}) tryYaml (bool) – if True, attempt to interpret pfas as YAML (assuming they fail as JSON) verbose (bool) – if True, write status messages to standard output sharedState (titus.genpy.SharedState) – external state for shared cells and pools to initialize from and modify; pass None to limit sharing to instances of a single PFA file multiplicity (positive integer) – number of instances to return (default is 1; a single-item collection) style (string) – style of scoring engine; only one currently supported: “pure” for pure-Python debug (bool) – if True, print the Python code generated by this PFA document before evaluating
Return type:	titus.genpy.EngineConfig
Returns:	a PFA document representing the chained workflow