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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 ipi_name_number(name=None):
 """ IPI Name Number field. An IPI Name Number is composed of eleven digits. So, for example, an IPI Name Number code field can contain 00014107338. :param name: name for the field :return: a parser for the IPI Name Number field """


    if name is None:
        name = 'IPI Name Number Field'

    field = basic.numeric(11)

    field.setName(name)

    return field.setResultsName('ipi_name_n')