class_docstr: Priority based scheduler, FIFO based on request order
code: def __init__(self, key):
      self._key = key
      self._request_cnt = 0
      self._lock = threading.Lock()
      self._values = []
      self._requests = []
  
imports: import asyncio
  import heapq
  import logging
  import socket
  import threading
  import errno
  import struct
  import json
  from tvm.contrib.popen_pool import PopenWorker
  from .._ffi.base import py_str
  from .None import base
  from .base import RPC_TRACKER_MAGIC, TrackerCode
label_desc: Use image node_id 1 to create a new PriorityScheduler object from inherited base classes: Scheduler with example: obj = PriorityScheduler(key)