<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def _logpdf(self, **kwargs):
 """ Returns the logpdf at the given angles. Parameters \**kwargs: The keyword arguments should specify the value for each angle, using the names of the polar and azimuthal angles as the keywords. Unrecognized arguments are ignored. Returns ------- float The value of the pdf at the given values. """

        return self._polardist._logpdf(**kwargs) +\
            self._azimuthaldist._logpdf(**kwargs)