code: def devtools_error_count_locator(self):
      return ".test-devtools-error-count"
  
file_path: dash/dash/testing/dash_page.py
imports: from bs4 import BeautifulSoup
label_desc: Use image node_id 2 for calling the DashPageMixin obj's underlying member method code with example usage: obj.devtools_error_count_locator() and returns: str