Julia-based definition of new layer

Hi,

I would like to define a new layer similar to dropout, using random number generation.
According to https://mxnet.readthedocs.org/en/latest/tutorial/new_op_howto.html it is currently possible to define layers using Python.

Is it possible to define new layers using Julia, and if so, could you provide a minimal example of a Julia-defined layer? (For example, something as simple as scaling the input.)

Thanks,
Sebastian