If x has shape (samples, dim) and n is 2, the output will have shape (samples, 2, dim).
Tensor or variable.
Integer, number of times to repeat.
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://keras.rstudio.com/articles/backend.html#backend-functions.