Parameter helpers

get_soft_bounds(bounds, softbounds)	For each soft bound (upper and lower), if there is a defined bound (not equal to None) and does not exceed the hard bound, then it is returned.
guess_bounds(params, **overrides)	Given a dictionary of Parameter instances, return a corresponding set of copies with the bounds appropriately set.
guess_param_types(**kwargs)	Given a set of keyword literals, promote to the appropriate parameter type based on some simple heuristics.
param_union(*parameterizeds[, warn])	Given a set of Parameterized objects, returns a dictionary with the union of all param name,value pairs across them.
ParamOverrides(overridden, dict_[, ...])	A dictionary that returns the attribute of a specified object if that attribute is not present in itself.