How to use the ropgadget.loaders.macho.SECTION.from_buffer_copy function in ROPGadget

def __setSections(self, segment, base, sizeHeader):
        for i in range(segment.nsects):
            if sizeHeader == 32:
                section = SECTION.from_buffer_copy(base)
                section.offset = segment.fileoff + section.addr - segment.vmaddr
                base = base[68:]
                self.__sections_l += [section]
            elif sizeHeader == 64:
                section = SECTION64.from_buffer_copy(base)
                section.offset = segment.fileoff + section.addr - segment.vmaddr
                base = base[80:]
                self.__sections_l += [section]