docs: def _apply_mapping(self, mapping):
          """
          Map some case specific data to the fields in internal dictionary.
          """
          self._POST["P0100LDR__"] = mapping[0]
          self._POST["P0200FMT__"] = mapping[1]
          self._POST["P0300BAS__a"] = mapping[2]
          self._POST["P07022001_b"] = mapping[3]
          self._POST["P1501IST1_a"] = mapping[4]