236     fn remove(&mut self, id: u32) -> Scope {  in remove()  method
560                     self.futures.readers.remove(id);  in generate()
561                     self.futures.writers.remove(id);  in generate()
589                     self.futures.writers.remove(id);  in generate()
598                     self.futures.readers.remove(id);  in generate()
599                     self.futures.writers.remove(id);  in generate()
621                         self.futures.writers.remove(id);  in generate()
645                 let scope = self.futures.readers.remove(id);  in generate()
661                 let scope = self.futures.writers.remove(id);  in generate()
737                 let scope = self.streams.readers.remove(id);  in generate()
748                 let scope = self.streams.writers.remove(id);  in generate()