title: How to implement my own federated algorithm Usinsg tensorflow federated
body: <p>I have read all the documents on the tensorflow federated available at tensorflow.org, but I am not sure how to implement my own federated algorithm. For example, I have a compiled keras model, I know how to convert this to tff.computation. It seems that in order to build a federated algorithm one should build an iterative_process. Can anyone help me in this regard? </p>
  
  <p>Thank you so much, </p>