Remove single-dimensional entries from the shape of an array.
| Parameters : | a : array_like 
 axis : None or int or tuple of ints, optional 
  | 
|---|---|
| Returns : | squeezed : ndarray 
  | 
Examples
>>> x = np.array([[[0], [1], [2]]])
>>> x.shape
(1, 3, 1)
>>> np.squeeze(x).shape
(3,)
>>> np.squeeze(x, axis=(2,)).shape
(1, 3)