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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 build_input_partitions(cls, name='inputTablePartitions', input_name='input'):
 """ Build an input table partition parameter :param name: parameter name :type name: str :param input_name: bind input port name :param input_name: str :return: input description :rtype: ParamDef """

        obj = cls(name)
        obj.exporter = 'get_input_partitions'
        obj.input_name = input_name
        return obj