old_contents: from pathlib import Path
  from typing import List, Text
  import re
  
  import pytest
  
  
  DOCS_BASE_DIR = Path("docs/")
  MDX_DOCS_FILES = list((DOCS_BASE_DIR / "docs").glob("**/*.mdx"))
  # we're matching anchors with href containing strings, but not starting
  # with "http". This also exclude local href already configured using `useBaseUrl()`
  ANCHOR_RE = re.compile(
      r"<(a|Button)[^>]*href=\"(?P<href>(?!http).+?)\"[^>]*>",
      re.DOTALL,
  )
  
  
  @pytest.mark.parametrize("mdx_file_path", MDX_DOCS_FILES)
  def test_docs_anchors_base_url(mdx_file_path: Path):
      with mdx_file_path.open("r") as handle:
          mdx_content = handle.read()
  
      matches = ANCHOR_RE.finditer(mdx_content)
      lines_with_errors: List[Text] = []
  
      for match in matches:
          href = match.group("href")
          start_index = match.span()[0]
          line_number = mdx_content.count("\n", 0, start_index) + 1
          lines_with_errors.append(f"{line_number} with href={href}")
  
      if lines_with_errors:
          plural = "s" if len(lines_with_errors) > 1 else ""
          raise AssertionError(
              f"({mdx_file_path}): Invalid anchor{plural} not using useBaseUrl() "
              f"at line{plural} {', '.join(lines_with_errors)}"
          )
  
new_contents: from pathlib import Path
  from typing import List, Text
  import re
  
  import pytest
  
  
  DOCS_BASE_DIR = Path("docs/")
  MDX_DOCS_FILES = list((DOCS_BASE_DIR / "docs").glob("**/*.mdx"))
  # we're matching anchors with href containing strings, but not starting
  # with "http". This also exclude local href already configured using `useBaseUrl()`
  ANCHOR_RE = re.compile(
      r"<(a|Button)[^>]*href=\"(?P<href>(?!http).+?)\"[^>]*>", re.DOTALL,
  )
  
  
  @pytest.mark.parametrize("mdx_file_path", MDX_DOCS_FILES)
  def test_docs_anchors_base_url(mdx_file_path: Path):
      with mdx_file_path.open("r") as handle:
          mdx_content = handle.read()
  
      matches = ANCHOR_RE.finditer(mdx_content)
      lines_with_errors: List[Text] = []
  
      for match in matches:
          href = match.group("href")
          start_index = match.span()[0]
          line_number = mdx_content.count("\n", 0, start_index) + 1
          lines_with_errors.append(f"{line_number} with href={href}")
  
      if lines_with_errors:
          plural = "s" if len(lines_with_errors) > 1 else ""
          raise AssertionError(
              f"({mdx_file_path}): Invalid anchor{plural} not using useBaseUrl() "
              f"at line{plural} {', '.join(lines_with_errors)}"
          )
  
subject: fix black formatting