docstr: Clear the stored flights.
docstr_tok: ["Clear","the","stored","flights","."]
code: def _clear(self):
      """Clear the stored flights."""
      self.flights = {}
  
imports: import ast
  import logging
  import threading
  import time
  import uuid
  import pyarrow
  import pyarrow.flight
label_desc: Use image node_id 10 for calling the FlightServer obj's underlying member method code with example usage: obj._clear() without return types