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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 LOAD(target_reg, region_name, offset_reg):
 """ Produce a LOAD instruction. :param target_reg: LOAD storage target. :param region_name: Named region of memory to load from. :param offset_reg: Offset into region of memory to load from. Must be a MemoryReference. :return: A ClassicalLoad instance. """

    return ClassicalLoad(unpack_classical_reg(target_reg), region_name, unpack_classical_reg(offset_reg))