class_docstr: Chroma query result wrapper
class_docstr_tok: ["Chroma","query","result","wrapper"]
code: def fetch(self, distance_threshold=float("inf")):
      for i in range(len(self)):
          item = ChromaQueryResultItem(self.result, i)
          if item.distance < distance_threshold:
              yield item
  
imports: from enum import auto, Enum
  import os
  import string
  from absl import logging
  import chromadb
  from chromadb.config import Settings
  from chromadb.utils import embedding_functions
  from chromadb.api.models import Collection
  from chromadb.api.types import QueryResult
  from palm import PaLM
label_desc: Use image node_id 3 for calling the ChromaQueryResult obj's underlying member method code with example usage: obj.fetch(distance_threshold) without return types