code: public static <T1, T2, R> BiFunction<T1, T2, R> ignore1st(Function<T2, R> function, Class<T1> ignored) {
          dbc.precondition(function != null, "cannot ignore parameter of a null function");
          return (first, second) -> function.apply(second);
      }
docs: Adapts a function to a binary function by ignoring the first parameter.
  
  @param <T1> the adapted function first parameter type
  @param <T2> the adapted function second parameter type
  @param <R> the adapted function result type
  @param function the function to be adapted
  @param ignored the adapted function ignored parameter type class
  @return the adapted function