class UserSerializer(serializers.ModelSerializer):
    """ A serializer class for the User model """
    class Meta:
        # Specify the model we are using
        model = User
        # Specify the fields that should be made accessible.
        # Mostly it is all fields in that model
        fields = ('id', 'first_name', 'last_name', 'username',
                  'password', 'is_active', 'is_superuser')