code: def accept_milestone_request(session, milestone_request_id):
      
      params_data = {
          'action': 'accept',
      }
      # POST /api/projects/0.1/milestone_requests/{milestone_request_id}/?action=
      # accept
      endpoint = 'milestone_requests/{}'.format(milestone_request_id)
      response = make_put_request(session, endpoint, params_data=params_data)
      json_data = response.json()
      if response.status_code == 200:
          return json_data['status']
      else:
          raise MilestoneRequestNotAcceptedException(
              message=json_data['message'],
              error_code=json_data['error_code'],
              request_id=json_data['request_id'])
docs: Accept a milestone request