code: def exists(self, file):
      self.files = self.get_files()
      return file in self.files
  
file_path: TimeSide/timeside/core/tools/cache.py
imports: import os
  import xml.dom.minidom
label_desc: Use image node_id 4 for calling the Cache obj's underlying member method code with example usage: obj.exists(file) and returns: unknown