code: def get_auth_string(username, password):
      credentials = username + ":" + password
      return "Basic " + str(
          base64.b64encode(credentials.encode("utf-8")).decode("utf-8")
      )
  
file_path: mindsdb/mindsdb/integrations/handlers/eventstoredb_handler/utils/helpers.py
imports: from urllib.parse import urlunparse, urljoin
  import re
  import pandas
  import json
  import base64
label_desc: Use image node_id 8 for calling a global function with example usage: get_auth_string(username, password) and returns: unknown