paper-xlsxAPI referencedescriptors.nestedopenpyxl.descriptors.nestedpaper-xlsx 0.2.1 API referenceCopy MarkdownOpen Generic serialisable classes ClassEmptyTagNestedNestedBoolNestedFloatNestedIntegerNestedMinMaxNestedNoneSetNestedSetNestedStringNestedTextNestedValueopenpyxl.descriptors.namespacepaper-xlsx 0.2.1 API referenceEmptyTagpaper-xlsx 0.2.1 API reference