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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def convert_serializer_field(field, is_input=True):
 """ Converts a django rest frameworks field to a graphql field and marks the field as required if we are creating an input type and the field itself is required """


    graphql_type = get_graphene_type_from_serializer_field(field)

    args = []
    kwargs = {"description": field.help_text, "required": is_input and field.required}

    # if it is a tuple or a list it means that we are returning
    # the graphql type and the child type
    if isinstance(graphql_type, (list, tuple)):
        kwargs["of_type"] = graphql_type[1]
        graphql_type = graphql_type[0]

    if isinstance(field, serializers.ModelSerializer):
        if is_input:
            graphql_type = convert_serializer_to_input_type(field.__class__)
        else:
            global_registry = get_global_registry()
            field_model = field.Meta.model
            args = [global_registry.get_type_for_model(field_model)]
    elif isinstance(field, serializers.ListSerializer):
        field = field.child
        if is_input:
            kwargs["of_type"] = convert_serializer_to_input_type(field.__class__)
        else:
            del kwargs["of_type"]
            global_registry = get_global_registry()
            field_model = field.Meta.model
            args = [global_registry.get_type_for_model(field_model)]

    return graphql_type(*args, **kwargs)