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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 get_field_name_for(cls, field_name, dynamic_part):
 """ Given the name of a dynamic field, and a dynamic part, return the name of the final dynamic field to use. It will then be used with get_field. """

        field = cls.get_field(field_name)
        return field.get_name_for(dynamic_part)