code: def calculate(self, T, method):
          r'''Method to calculate permittivity of a liquid at temperature `T`
          with a given method.
  
          This method has no exception handling; see `T_dependent_property`
          for that.
  
          Parameters
          ----------
          T : float
              Temperature at which to calculate relative permittivity, [K]
          method : str
              Name of the method to use
  
          Returns
          -------
          epsilon : float
              Relative permittivity of the liquid at T, [-]
          '''
          if method == CRC:
              A, B, C, D = self.CRC_coeffs
              epsilon = A + B*T + C*T**2 + D*T**3
          elif method == CRC_CONSTANT:
              epsilon = self.CRC_permittivity
          elif method in self.tabular_data:
              epsilon = self.interpolate(T, method)
          return epsilof calculate(self, T, method):
          r'''Method to calculate permittivity of a liquid at temperature `T`
          with a given method.
  
          This method has no exception handling; see `T_dependent_property`
          for that.
  
          Parameters
          ----------
          T : float
              Temperature at which to calculate relative permittivity, [K]
          method : str
              Name of the method to use
  
          Returns
          -------
          epsilon : float
              Relative permittivity of the liquid at T, [-]
          '''
          if method == CRC:
              A, B, C, D = self.CRC_coeffs
              epsilon = A + B*T + C*T**2 + D*T**3
          elif method == CRC_CONSTANT:
              epsilon = self.CRC_permittivity
          elif method in self.tabular_data:
              epsilon = self.interpolate(T, method)
          return epsilon
docs: r'''Method to calculate permittivity of a liquid at temperature `T`
          with a given method.
  
          This method has no exception handling; see `T_dependent_property`
          for that.
  
          Parameters
          ----------
          T : float
              Temperature at which to calculate relative permittivity, [K]
          method : str
              Name of the method to use
  
          Returns
          -------
          epsilon : float
              Relative permittivity of the liquid at T, [-]