def from_RealField(K1, a, K0):
        return K1(K1.domain.convert(a, K0))
Test writing a chartsheet with no cell data.
dataset/ETHPy150Open sympy/sympy/sympy/polys/domains/fractionfield.py/FractionField.from_RealField--crossover with--dataset/ETHPy150Open jmcnamara/XlsxWriter/xlsxwriter/test/chartsheet/test_chartsheet01.py/TestAssembleChartsheet.test_assemble_xml_file