text: 
  """ Initialized parameters """
  port = 19530
  epsilon = 0.000001
  namespace = "milvus"
  default_flush_interval = 1
  big_flush_interval = 1000
  default_drop_interval = 3
  default_dim = 128
  default_nb = 1200
  default_top_k = 10
  default_nq = 2
  default_limit = 10
  default_search_params = {"metric_type": "L2", "params": {"nprobe": 10}}
  max_top_k = 16384
  max_partition_num = 4096  # 256
  default_segment_row_limit = 1000
  default_server_segment_row_limit = 1024 * 512
  default_alias = "default"
  default_int64_field_name = "int64"
  default_float_field_name = "float"
  default_float_vec_field_name = "float_vector"
  default_binary_vec_field_name = "binary_vector"
  default_partition_name = "_default"
  default_tag = "1970_01_01"
  row_count = "row_count"
  default_desc = ""
  default_collection_desc = "default collection"
  default_index_name = "default_index_name"
  default_binary_desc = "default binary collection"
  collection_desc = "collection"
  int_field_desc = "int64 type field"
  float_field_desc = "float type field"
  float_vec_field_desc = "float vector type field"
  binary_vec_field_desc = "binary vector type field"
  
  Not_Exist = "Not_Exist"
  Connect_Object_Name = "Milvus"
  
  err_code = "err_code"
  err_msg = "err_msg"
  
  """" List of parameters used to pass """
  get_invalid_strs = [
      [],
      1,
      [1, "2", 3],
      (1,),
      {1: 1},
      None,
      "12-s",
      "12 s",
      "(mn)",
      "中文",
      "%$#",
      "a".join("a" for i in range(256))]
  
  
  """ Specially defined list """
  all_index_types = ["FLAT", "IVF_FLAT", "IVF_SQ8", "IVF_PQ", "HNSW", "ANNOY", "RHNSW_FLAT", "RHNSW_PQ", "RHNSW_SQ",
                     "BIN_FLAT", "BIN_IVF_FLAT"]
  
  default_index_params = [{"nlist": 128}, {"nlist": 128}, {"nlist": 128}, {"nlist": 128, "m": 16, "nbits": 8},
                          {"M": 48, "efConstruction": 500}, {"n_trees": 50}, {"M": 48, "efConstruction": 500},
                          {"M": 48, "efConstruction": 500, "PQM": 64}, {"M": 48, "efConstruction": 500}, {"nlist": 128},
                          {"nlist": 128}]
  
  Handler_type = ["GRPC", "HTTP"]
  index_cpu_not_support = ["IVF_SQ8_HYBRID"]
  binary_support = ["BIN_FLAT", "BIN_IVF_FLAT"]
  delete_support = ["FLAT", "IVF_FLAT", "IVF_SQ8", "IVF_SQ8_HYBRID", "IVF_PQ"]
  ivf = ["FLAT", "IVF_FLAT", "IVF_SQ8", "IVF_SQ8_HYBRID", "IVF_PQ"]
  skip_pq = ["IVF_PQ", "RHNSW_PQ", "RHNSW_SQ"]
  binary_metrics = ["JACCARD", "HAMMING", "TANIMOTO", "SUBSTRUCTURE", "SUPERSTRUCTURE"]
  structure_metrics = ["SUBSTRUCTURE", "SUPERSTRUCTURE"]
  
  
  class CheckTasks:
      """ The name of the method used to check the result """
      false = False
      err_res = "error_response"
      check_connection_result = "check_connection_result"
      check_collection_property = "check_collection_property"
      check_partition_property = "check_partition_property"
      check_search_results = "check_search_results"
  
  
  class CaseLabel:
      """
      Testcase Levels
      CI Regression:
          L0:
              part of CI Regression
              triggered by github commit
              optional used for dev to verify his fix before submitting a PR(like smoke)
              ~100 testcases and run in 3 mins
          L1:
              part of CI Regression
              triggered by github commit
              must pass before merge
              run in 15 mins
      Benchmark:
          L2:
              E2E tests and bug-fix verification
              Nightly run triggered by cron job
              run in 60 mins
          L3:
              Stability/Performance/reliability, etc. special tests
              Triggered by cron job or manually
              run duration depends on test configuration
      """
      L0 = "L0"
      L1 = "L1"
      L2 = "L2"
      L3 = "L3"
  