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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_lib():
 """Load libary by searching possible path."""

    lib_path = _find_lib_path()
    lib = ctypes.cdll.LoadLibrary(lib_path[0])
    # DMatrix functions
    lib.MXGetLastError.restype = ctypes.c_char_p
    return lib