code: def vector_delete(self, payload, db_name="default"):
      url = f"{self.protocol}://{self.url}/vector/delete"
      if self.db_name is not None:
          payload["dbName"] = self.db_name
      if db_name != "default":
          payload["dbName"] = db_name
      response = self.post(
          url, headers=self.update_headers(), data=payload
      )
      return response.json()
  
imports: import json
  import requests
  import time
  import uuid
  from utils.util_log import test_log
label_desc: Use image node_id 6 for calling the VectorClient obj's underlying member method code with example usage: obj.vector_delete(payload, db_name) and returns: response