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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 crud_mutation_name(action, model):
 """ This function returns the name of a mutation that performs the specified crud action on the given model service """

    model_string = get_model_string(model)
    # make sure the mutation name is correctly camelcases
    model_string = model_string[0].upper() + model_string[1:]

    # return the mutation name
    return "{}{}".format(action, model_string)