def __init__(self, filename):
super().__init__(backend=pdf)
self.styles = styles
parser = ReStructuredTextParser()
self.root = parser.parse(filename)
self.content = rt.Chain(self)
self.parse_input()
def render_rst(content):
input_file = StringIO(content)
parser = ReStructuredTextParser()
document_tree = parser.parse(input_file)
document = Article(document_tree, OPTIONS, backend=pdf)
pdf_output = BytesIO()
document.render(file=pdf_output)
pdf_output.seek(0)
return pdf_output
