code: public JsonMappingOption filterSimpleTextReading(JsonSimpleTextReadingFilter simpleTextReadingFilter) {
          if (simpleTextReadingFilter == null) {
              throw new IllegalArgumentException("The argument 'simpleTextReadingFilter' should not be null.");
          }
          this.simpleTextReadingFilter = OptionalThing.of(simpleTextReadingFilter);
          return this;
      }
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