old_contents: """
  run.py
  """
  
  class Run(object):
      """Class to handle all model run metadata 
      and provide access to model output."""
      def __init__(self,id):
          """Run constructor."""
          self.id = id
  
new_contents: """
  run.py
  """
  
  class Run(object):
      """Class to handle all model run metadata 
      and provide access to model output."""
      def __init__(self,id):
          """Run constructor."""
          self.id = id
  
      def create(self,model,version):
          """Create a model run."""
          pass
  
      def delete(self):
          """Deletes run data on server."""
          pass
  
      def get(self):
          """Refreshes the run data from the server."""
          pass
  
      def upload(self,filename=None,url=None):
          """Upload a local or remote file."""
          pass
  
      def start(self):
          """Starts the run."""
          pass
  
      def start(self):
          """Stops the run."""
          pass
  
subject: add Run methods skeleton