class_docstr: Raised when a required sample with a particular label is missing.
class_docstr_tok: ["Raised","when","a","required","sample","with","a","particular","label","is","missing","."]
code: def __init__(self, label_or_msg: str) -> None:
      ...
  
file_path: nni/nni/mutable/exception.py
imports: from __future__ import annotations
  from typing import overload
label_desc: Use image node_id 2 to create a new SampleMissingError object from inherited base classes: SampleValidationError with example: obj = SampleMissingError(label_or_msg)