* 🔄 createUnionTypeAnnotation => createFlowUnionType * ➕ add createFlowUnionType if it exists (in new versions only ⚠️) * 🔄 use createFlowUnionType for createUnionTypeAnnotation
* 🔄 createUnionTypeAnnotation => createFlowUnionType * ➕ add createFlowUnionType if it exists (in new versions only ⚠️) * 🔄 use createFlowUnionType for createUnionTypeAnnotation