class_docstr: Represents a qualified name.
code: def is_symbol(self):
      return isinstance(self.qn[0], str)
  
imports: import collections
  import gast
  from nvidia.dali._autograph.pyct import anno
  from nvidia.dali._autograph.pyct import parser
label_desc: Use image node_id 2 for calling the QN obj's underlying member method code with example usage: obj.is_symbol() and returns: isinstance