backward interface.
backward interface. override to create new operators
: array of String how to assign to inGrad. can be 'null', 'write', or 'add'. You can optionally use this.assign(dst, req, src) to handle this.
forward interface.
forward interface. override to create new operators.
: Boolean whether this is for training
: array of String how to assign to outData. can be 'null', 'write', or 'add'. You can optionally use this.assign(dst, req, src) to handle this.
Helper function for assigning into dst depending on requirements.
Base class for operators implemented in Scala