maybeWhen<TResult extends Object?> method Null safety

TResult maybeWhen<TResult extends Object?>(
  1. {TResult json(
    1. String id,
    2. String part,
    3. List<JsonSchema> schema,
    4. Map<String, dynamic> extra
    )?,
  2. TResult zipJson(
    1. String id,
    2. String part,
    3. List<JsonSchema> schema,
    4. Map<String, dynamic> extra
    )?,
  3. required TResult orElse(
      )}
    )
    inherited

    Implementation

    @optionalTypeArgs
TResult maybeWhen<TResult extends Object?>({
  TResult Function(String id, String part, List<JsonSchema> schema,
          @JsonExtra() Map<String, dynamic> extra)?
      json,
  TResult Function(String id, String part, List<JsonSchema> schema,
          @JsonExtra() Map<String, dynamic> extra)?
      zipJson,
  required TResult orElse(),
}) =>
    throw _privateConstructorUsedError;