Sets the value of a variable, from an R array.

`k_set_value(x, value)`

- x
Tensor to set to a new value.

- value
Value to set the tensor to, as an R array (of the same shape).

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.