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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 array_to_csv(array_like):
 # type: (np.array or Iterable or int or float) -> str """Convert an array like object to CSV. To understand better what an array like object is see: https://docs.scipy.org/doc/numpy/user/basics.creation.html#converting-python-array-like-objects-to-numpy-arrays Args: array_like (np.array or Iterable or int or float):
 array like object to be converted to CSV. Returns: (str):
 object serialized to CSV """

    stream = StringIO()
    np.savetxt(stream, array_like, delimiter=',', fmt='%s')
    return stream.getvalue()