* Fix for issue #1385: Update mutation.py to serialize Enum objects into input values for ChoiceFields
* Update graphene_django/rest_framework/mutation.py
Co-authored-by: Steven DeMartini <1647130+sjdemartini@users.noreply.github.com>
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Co-authored-by: Steven DeMartini <1647130+sjdemartini@users.noreply.github.com>
* use `to_represenation` in favor of `get_attribute`
* fix datetime type does get converted to a string
to_representation will convert the datetime field into a string representation. However the to_representation on the method field will only call its underlying method.
* fix add missing import
* apply black formatter
* add test for serializer method field
* apply black format
* improve backward compatibility
by using date's class contructor instead of fromisostring
* apply black format
* fix black format issue
