class_docstr: Assemble DOT source code.
class_docstr_tok: ["Assemble","DOT","source","code","."]
code: def _attr_plain(cls, left: str) -> str:
      return cls._attr(left, "")
  
imports: import contextlib
  import typing
  from .None import _tools
  from .None import base
  from .None import quoting
label_desc: Use image node_id 3 for calling the Dot obj's underlying member method code with example usage: obj._attr_plain(cls, left) and returns: cls