code: def node_transmissions(node_id):
      
      exp = Experiment(session)
  
      # get the parameters
      direction = request_parameter(parameter="direction", default="incoming")
      status = request_parameter(parameter="status", default="all")
      for x in [direction, status]:
          if type(x) == Response:
              return x
  
      # check the node exists
      node = models.Node.query.get(node_id)
      if node is None:
          return error_response(error_type="/node/transmissions, node does not exist")
  
      # execute the request
      transmissions = node.transmissions(direction=direction, status=status)
  
      try:
          if direction in ["incoming", "all"] and status in ["pending", "all"]:
              node.receive()
              session.commit()
          # ping the experiment
          exp.transmission_get_request(node=node, transmissions=transmissions)
          session.commit()
      except Exception:
          return error_response(
              error_type="/node/transmissions GET server error",
              status=403,
              participant=node.participant,
          )
  
      # return the data
      return success_response(transmissions=[t.__json__() for t in transmissions])
docs: Get all the transmissions of a node.
  
      The node id must be specified in the url.
      You can also pass direction (to/from/all) or status (all/pending/received)
      as arguments.