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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 uhstack(arrs):
 """Stack arrays in sequence horizontally while preserving units This is a wrapper around np.hstack that preserves units. Examples -------- [1 2 3 2 3 4] km [[1 2] [2 3] [3 4]] km """

    v = np.hstack(arrs)
    v = _validate_numpy_wrapper_units(v, arrs)
    return v