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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 _vector(x, type='row'):
 """Convert an object to a row or column vector."""

    if isinstance(x, (list, tuple)):
        x = np.array(x, dtype=np.float32)
    elif not isinstance(x, np.ndarray):
        x = np.array([x], dtype=np.float32)
    assert x.ndim == 1
    if type == 'column':
        x = x[:, None]
    return x