How to use the pycel.excelwrapper.ExcelOpxWrapper.RangeData function in pycel

def _get_cell(self, address):
        cell_value = self.cell_map.get(str(address))

        if cell_value is None:
            return ExcelOpxWrapper.RangeData(address, '', None)

        elif isinstance(cell_value, str) and cell_value.startswith('='):
            return ExcelOpxWrapper.RangeData(address, cell_value, None)

        else:
            return ExcelOpxWrapper.RangeData(address, '', cell_value)

def _get_cell(self, address):
        cell_value = self.cell_map.get(str(address))

        if cell_value is None:
            return ExcelOpxWrapper.RangeData(address, '', None)

        elif isinstance(cell_value, str) and cell_value.startswith('='):
            return ExcelOpxWrapper.RangeData(address, cell_value, None)

        else:
            return ExcelOpxWrapper.RangeData(address, '', cell_value)

def _get_cell(self, address):
        cell_value = self.cell_map.get(str(address))

        if cell_value is None:
            return ExcelOpxWrapper.RangeData(address, '', None)

        elif isinstance(cell_value, str) and cell_value.startswith('='):
            return ExcelOpxWrapper.RangeData(address, cell_value, None)

        else:
            return ExcelOpxWrapper.RangeData(address, '', cell_value)

# this is a unbounded range to range mapping, disassemble
            cell = self._get_cell(address)
            formula = cell.formula
            assert formula.startswith(REF_START)
            assert formula.endswith(REF_END)
            ref_addr = formula[len(REF_START):-len(REF_END)]
            return self.get_range(AddressRange(ref_addr))
        else:
            # need to map col or row ranges to a specific range
            addresses = address.resolve_range

            cells = [[self._get_cell(addr) for addr in row]
                     for row in addresses]
            values = [[c.values for c in row] for row in cells]

            return ExcelOpxWrapper.RangeData(address, None, values)