'Init function.
Arguments:
file_contents: The contents of the Python file.
results: A file results objects to which violations will be added.
skip_wrapped_html: True if visitor should skip strings wrapped with
HTML() or Text(), and False otherwise.'

def __init__(self, file_contents, results, skip_wrapped_html=False):

    super(HtmlStringVisitor, self).__init__(file_contents, results)
    self.skip_wrapped_html = skip_wrapped_html
    self.unsafe_html_string_nodes = []
    self.over_escaped_entity_string_nodes = []
    self.has_text_or_html_call = False
