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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def _require_backsearch(self):
 """ Determine whether a backsearch should be performed on prior peaks """

        if self.peak_num == self.n_peaks_i-1:
            # If we just return false, we may miss a chance to backsearch.
            # Update this?
            return False

        next_peak_ind = self.peak_inds_i[self.peak_num + 1]

        if next_peak_ind-self.last_qrs_ind > self.rr_recent*1.66:
            return True
        else:
            return False