def add(self, string, start, end, line):
if string.strip():<EOL><INDENT>self.start_lineno = min(self.start_lineno, start[<NUM_LIT:0>])<EOL>self.end_lineno = max(self.end_lineno, end[<NUM_LIT:0>])<EOL><DEDENT>
Add lines to the block.