code: def _as_str(value) -> str:
      if isinstance(value, (Number, str)):
          return str(value)
      if isinstance(value, pd.DataFrame):
          return "df"
      name = str(getattr(value, "name", "") or "")
      if name in ("Open", "High", "Low", "Close", "Volume"):
          return name[:1]
      if callable(value):
          name = getattr(
              value, "__name__", value.__class__.__name__
          ).replace("<lambda>", "λ")
      if len(name) > 10:
          name = name[:9] + "…"
      return name
  
imports: import warnings
  from numbers import Number
  from typing import Dict, List, Optional, Sequence, Union, cast
  import numpy
  import pandas
label_desc: Use image node_id 2 for calling a global function with example usage: _as_str(value) and returns: name, str, str, name