Returns the shape of tensor or variable as a list of int or NULL entries.

`k_int_shape(x)`

A list of integers (or NULL entries).

- x
Tensor or variable.

This function is part of a set of Keras backend functions that enable lower level access to the core operations of the backend tensor engine (e.g. TensorFlow, CNTK, Theano, etc.).

You can see a list of all available backend functions here: https://tensorflow.rstudio.com/reference/keras/index.html#backend.