class_docstr: Video output implemented by writing individual PNGs to disk.
class_docstr_tok: ["Video","output","implemented","by","writing","individual","PNGs","to","disk","."]
code: def available(cls):
      return True
  
imports: from __future__ import absolute_import
  from __future__ import division
  from __future__ import print_function
  import abc
  import os
  import subprocess
  import time
  import numpy
label_desc: Use image node_id 1 for calling the PNGVideoOutput obj's underlying member method code with example usage: obj.available(cls) and returns: True