toJsonLd method

@override Map<String, dynamic> toJsonLd()

Serialize SchemaHowToItem to JSON-LD

Implementation

@override
Map<String, dynamic> toJsonLd() => removeEmpty({
      ...super.toJsonLd(),
      '@type': 'HowToItem',
      'requiredQuantity': convertToJsonLd(
          requiredQuantity, [SchemaQuantitativeValue, String, num]),
    });