How to assign python kernel 3.6.x to user1 and R kernel to user2 in Jupyterhub

JupyterHub
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1

Hi All,

Please help/guide me, how to assign python kernel 3.6.x to user1 and R kernel to user2 in Jupyterhub.

# jupyter-kernelspec list
Available kernels:
  ir          /root/.local/share/jupyter/kernels/ir
   python3    /usr/local/python3/3_6_8/share/jupyter/kernels/python3

Regards,
Zain