class_docstr: Concatenation operation of several grammars. You don't initialize this
  yourself, but it's a result of a "Grammar1 + Grammar2" operation.
class_docstr_tok: ["Concatenation","operation","of","several","grammars",".","You","do","n't","initialize","this","yourself",",","but","it","'s","a","result","of","a","``","Grammar1","+","Grammar2","''","operation","."]
code: def __repr__(self) -> str:
      return f"{self.__class__.__name__}({self.children!r})"
  
imports: from __future__ import annotations
  import re
label_desc: Use image node_id 3 for calling the NodeSequence obj's underlying member method code with example usage: obj.__repr__() and returns: self, str, self, str