class_docstr: Additional methods;
  Public methods that can be used for test cases.
class_docstr_tok: ["Additional","methods",";","Public","methods","that","can","be","used","for","test","cases","."]
code: def init_multi_fields_collection_wrap(self, name=cf.gen_unique_str()):
      vec_fields = [
          cf.gen_float_vec_field(ct.another_float_vec_field_name)
      ]
      schema = cf.gen_schema_multi_vector_fields(vec_fields)
      collection_w = self.init_collection_wrap(name=name, schema=schema)
      df = cf.gen_dataframe_multi_vec_fields(vec_fields=vec_fields)
      collection_w.insert(df)
      assert collection_w.num_entities == ct.default_nb
      return collection_w, df
  
imports: from numpy.core.fromnumeric import _partition_dispatcher
  import pytest
  import sys
  from pymilvus import DefaultConfig
  from base.database_wrapper import ApiDatabaseWrapper
  from base.connections_wrapper import ApiConnectionsWrapper
  from base.collection_wrapper import ApiCollectionWrapper
  from base.partition_wrapper import ApiPartitionWrapper
  from base.index_wrapper import ApiIndexWrapper
  from base.utility_wrapper import ApiUtilityWrapper
  from base.schema_wrapper import ApiCollectionSchemaWrapper, ApiFieldSchemaWrapper
  from base.high_level_api_wrapper import HighLevelApiWrapper
  from utils.util_log import test_log
  from common import common_func
  from common import common_type
  from pymilvus import ResourceGroupInfo
label_desc: Use image node_id 3 for calling the TestcaseBase obj's underlying member method code with example usage: obj.init_multi_fields_collection_wrap(name) and returns: collection_w,  df