docs: def p_property_assignment(self, p):
          """property_assignment \
               : property_name COLON assignment_expr
               | GETPROP property_name LPAREN RPAREN LBRACE function_body RBRACE
               | SETPROP property_name LPAREN property_set_parameter_list RPAREN\
                     LBRACE function_body RBRACE
          """
          if len(p) == 4:
              p[0] = self.asttypes.Assign(left=p[1], op=p[2], right=p[3])
              p[0].setpos(p, 2)
          elif len(p) == 8:
              p[0] = self.asttypes.GetPropAssign(prop_name=p[2], elements=p[6])
              p[0].setpos(p)
          else:
              p[0] = self.asttypes.SetPropAssign(
                  prop_name=p[2], parameter=p[4], elements=p[7])
              p[0].setpos(p)