https://www.tensorflow.org/api_guides/python/array_ops#Shapes_and_Shaping
reshape
like numpy
squeeze
(removes dimensions of size 1 from the shape of a tensor)
expand_dims
(adds dimensions of size 1)
https://www.tensorflow.org/api_guides/python/array_ops#Shapes_and_Shaping
like numpy
(removes dimensions of size 1 from the shape of a tensor)
(adds dimensions of size 1)