code: def __init__(self, pushurl="rtsp://127.0.0.1:8554/"):
      self.command = ""
      # 自行设置
      self.pushurl = pushurl
  
imports: import time
  import os
  import ast
  import glob
  import yaml
  import copy
  import numpy
  import subprocess
  from python.keypoint_preprocess import EvalAffine, TopDownEvalAffine, expand_crop
label_desc: Use image node_id 1 to create a new PushStream object from inherited base classes: object with example: obj = PushStream(pushurl)