def to_pycbc(self, copy=True):
        """Convert this `FrequencySeries` into a
        `~pycbc.types.frequencyseries.FrequencySeries`

        Parameters
        ----------
        copy : `bool`, optional, default: `True`
            if `True`, copy these data to a new array

        Returns
        -------
        frequencyseries : `pycbc.types.frequencyseries.FrequencySeries`
            a PyCBC representation of this `FrequencySeries`
        """
        from pycbc import types

        if self.epoch is None:
            epoch = None
        else:
            epoch = self.epoch.gps
        return types.FrequencySeries(self.value,
                                     delta_f=self.df.to('Hz').value,
                                     epoch=epoch, copy=copy)
Convert this `FrequencySeries` into a
        `~pycbc.types.frequencyseries.FrequencySeries`

        Parameters
        ----------
        copy : `bool`, optional, default: `True`
            if `True`, copy these data to a new array

        Returns
        -------
        frequencyseries : `pycbc.types.frequencyseries.FrequencySeries`
            a PyCBC representation of this `FrequencySeries`