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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def create_sync_ops(self, host_device):
 """Create an assignment operation for each weight on all devices. The weight is assigned the value of the copy on the `host_device'. """

    sync_ops = []
    host_params = self.params_device[host_device]
    for device, params in (self.params_device).iteritems():
      if device == host_device:
        continue
      for k in self.params_names:
        if isinstance(params[k], tf.Variable):
          sync_ops += [tf.assign(params[k], host_params[k])]
    return sync_ops