How to use the scratch-blocks.FieldNote function in scratch-blocks

this.jsonInit(json);
    };

    ScratchBlocks.VerticalFlyout.getCheckboxState = function (blockId) {
        const monitoredBlock = vm.runtime.monitorBlocks._blocks[blockId];
        return monitoredBlock ? monitoredBlock.isMonitored : false;
    };

    ScratchBlocks.FlyoutExtensionCategoryHeader.getExtensionState = function (extensionId) {
        if (vm.getPeripheralIsConnected(extensionId)) {
            return ScratchBlocks.StatusButtonState.READY;
        }
        return ScratchBlocks.StatusButtonState.NOT_READY;
    };

    ScratchBlocks.FieldNote.playNote_ = function (noteNum, extensionId) {
        vm.runtime.emit('PLAY_NOTE', noteNum, extensionId);
    };

    // Use a collator's compare instead of localeCompare which internally
    // creates a collator. Using this is a lot faster in browsers that create a
    // collator for every localeCompare call.
    const collator = new Intl.Collator([], {
        sensitivity: 'base',
        numeric: true
    });
    ScratchBlocks.scratchBlocksUtils.compareStrings = function (str1, str2) {
        return collator.compare(str1, str2);
    };

    // Blocks wants to know if 3D CSS transforms are supported. The cross
    // section of browsers Scratch supports and browsers that support 3D CSS