Float64 Numpy array test
Added a test to check int64 and float64 Numpy arrays because an error like this existed before:
in Base_executeJupyter
return json.dumps(result)
Module json, line 244, in dumps
return _default_encoder.encode(obj)
Module json.encoder, line 207, in encode
chunks = self.iterencode(o, _one_shot=True)
Module json.encoder, line 270, in iterencode
return _iterencode(o, 0)
Module json.encoder, line 184, in default
raise TypeError(repr(o) + " is not JSON serializable")
TypeError: array([[ -245554., 19410., 1453313.],
[ -238947., 18888., 1443651.],
[ -238416., 18350., 1444382.],
...,
[ -250816., 19482., 1445528.],
[ -251464., 18678., 1444711.],
[ -253475., 18786., 1444842.]]) is not JSON serializable