Use Pydantic for json serialization in .to_json method#22111

EspenHa wants to merge 2 commits intoOpenAPITools:masterOpenAPITools/openapi-generator:masterfrom

RagnaRockGeo:fix_python_to_json_with_uuidRagnaRockGeo/openapi-generator:fix_python_to_json_with_uuidCopy head branch name to clipboard