docs: def relative_probability_from_lookup_table( self, jump_lookup_table ):
          """
          Relative probability of accepting this jump from a lookup-table.
  
          Args:
              jump_lookup_table (LookupTable): the lookup table to be used for this jump.
  
          Returns:
              (Float): relative probability of accepting this jump.
          """
          l1 = self.initial_site.label
          l2 = self.final_site.label
          c1 = self.initial_site.nn_occupation()
          c2 = self.final_site.nn_occupation()
          return jump_lookup_table.jump_probability[ l1 ][ l2 ][ c1 ][ c2 ]