def parse_docstring(self):
self.log.debug(<EOL>"<STR_LIT>", self.current.kind, self.current.value<EOL>)<EOL>while self.current.kind in (tk.COMMENT, tk.NEWLINE, tk.NL):<EOL><INDENT>self.stream.move()<EOL>self.log.debug(<EOL>"<STR_LIT>",<EOL>self.current.kind,<EOL>self.current.value,<EOL>)<EOL><DEDENT>if self.current.kind == tk.STRING:<EOL><INDENT>docstring = self.current.value<EOL>self.stream.move()<EOL>return docstring<EOL><DEDENT>return None<EOL>
Parse a single docstring and return its value.