hunk.code_window: declare module '../../Observable' {
     interface Observable<T> {
       catch: CatchSignature<T>;
     }
   }
  
hunk.labels: keep keep keep add keep keep
hunk.after_edit:     _catch: CatchSignature<T>;
  
hunk.file_path: src/add/operator/catch.ts
hunk.type: add
file: blesh
  kwonoj
  staltz
  trxcllnt
  mattpodwysocki
  jayphelps
  