def METHOD_NAME(content):
  """
    parse internal field from content
    @ In, content, list, contents of lines
    @ Out, parseInternalFieldContent, np.array, numpy array of internal field
  """
  isBinary = isBinaryFormat(content)
  for ln, lc in enumerate(content):
    if lc.startswith(b'internalField'):
      if b'nonuniform' in lc:
        return parseDataNonuniform(content, ln, len(content), isBinary)
      elif b'uniform' in lc:
        return parseDataUniform(content[ln])
        break
  return None