def _get_css_imports(data, inline=False):
 imports = _get_css_imports_cssutils(data, inline)
 if (imports is None):
  imports = _get_css_imports_regex(data)
 return imports

def _get_css_imports ( data , inline = False ) : imports = _get_css_imports_cssutils ( data , inline ) if ( imports is None ) : imports = _get_css_imports_regex ( data ) return imports
return all assets that are referenced in the given css document .