`axis`

.Removes a 1-dimension from the tensor at index `axis`

.

`k_squeeze(x, axis = NULL)`

A tensor with the same data as `x`

but reduced dimensions.

- x
A tensor or variable.

- axis
Axis to drop (axis indexes are 1-based).

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.