(grids: Iterable[Mapping[str, V]])
return [nest_choice_HPparams(grid) for grid in grids]
this transforms every key(parameter name) in the grids
    to be nested under a choice, using a ? as a prefix (separated by __).  This is the convention in scikit-learn pipelines.
this transforms every key(parameter name) in the grids
    to be nested under a choice, using a ? as a prefix (separated by __).  This is the convention in scikit-learn pipelines.
this transforms every key ( parameter name ) in the grids to be nested under a choice using a ? as a prefix ( separated by __ ) . This is the convention in scikit - learn pipelines .
def nest_choice_all_HPparams(grids: Iterable[Mapping[str, V]]) -> List[Dict[str, V]]:
    """this transforms every key(parameter name) in the grids
    to be nested under a choice, using a ? as a prefix (separated by __).  This is the convention in scikit-learn pipelines.
    """
    return [nest_choice_HPparams(grid) for grid in grids]
def nest_choice_all_HPparams ( grids : Iterable [ Mapping [ str , V ] ] ) -> List [ Dict [ str , V ] ] : return [ nest_choice_HPparams ( grid ) for grid in grids ]