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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 arg_string_from_dict(arg_dict, **kwds):
 """ This function takes a series of ditionaries and creates an argument string for a graphql query """

    # the filters dictionary
    filters = {
        **arg_dict,
        **kwds,
    }
    # return the correctly formed string
    return ", ".join("{}: {}".format(key, json.dumps(value)) for key,value in filters.items())