You can cast a Keras variable but it still returns a Keras tensor.
k_cast(x, dtype)
Keras tensor with dtype dtype
.
Keras tensor (or variable).
String, either ('float16'
, 'float32'
, or 'float64'
).
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.