code: @Nullable
      public static Predicate anyOf(Collection<Predicate> exprs) {
          Predicate rv = null;
          for (Predicate b : exprs) {
              if (b != null) {
                  rv = rv == null ? b : ExpressionUtils.or(rv,b);
              }
          }
          return rv;
      }
docs: Create the union of the given arguments
  
  @param exprs predicate
  @return union