class_docstr: run accuracy
class_docstr_tok: ["run","accuracy"]
code: def prepare(self, **case_param):
      collection_name = case_param["collection_name"]
      self.milvus.set_collection(collection_name)
      if not self.milvus.exists_collection():
          logger.info("collection not exist")
      self.milvus.load_collection(timeout=600)
  
imports: import time
  import copy
  import logging
  import numpy
  from milvus_benchmark import parser
  from milvus_benchmark.runners import utils
  from milvus_benchmark.runners.base import BaseRunner
label_desc: Use image node_id 3 for calling the AccuracyRunner obj's underlying member method code with example usage: obj.prepare() without return types