docs: def normalize(self, inplace=True):
          """
          Normalizes the distribution. In case of a Gaussian Distribution the
          distribution is always normalized, therefore this method doesn't do
          anything and has been implemented only for a consistent API across
          distributions.
          """
          phi = self if inplace else self.copy()
  
          # The pdf of a Joint Gaussian distrinution is always
          # normalized. Hence, no changes.
          if not inplace:
              return phi