param.parameterized.Parameters.watch_values

Parameters.watch_values(fn, parameter_names, what='value', onlychanged=True, queued=False, precedence=0)

Easier-to-use version of watch specific to watching for changes in parameter values.

Only allows what to be ‘value’, and invokes the callback fn using keyword arguments <param_name>=<new_value> rather than with a list of Event objects.