How to use the @pixi/settings.settings.SPRITE_BATCH_SIZE function in @pixi/settings

*/
        this.vertSize = 5;

        /**
         * The size of the vertex information in bytes.
         *
         * @member {number}
         */
        this.vertByteSize = this.vertSize * 4;

        /**
         * The number of images in the SpriteRenderer before it flushes.
         *
         * @member {number}
         */
        this.size = settings.SPRITE_BATCH_SIZE; // 2000 is a nice balance between mobile / desktop

        // the total number of bytes in our batch
        // let numVerts = this.size * 4 * this.vertByteSize;

        this.buffers = [];
        for (let i = 1; i <= bitTwiddle.nextPow2(this.size); i *= 2)
        {
            this.buffers.push(new BatchBuffer(i * 4 * this.vertByteSize));
        }

        /**
         * Holds the indices of the geometry (quads) to draw
         *
         * @member {Uint16Array}
         */
        this.indices = createIndicesForQuads(this.size);

/**
         * The WebGL state in which this renderer will work.
         *
         * @member {PIXI.State}
         * @readonly
         */
        this.state = State.for2d();

        /**
         * The number of bufferable objects before a flush
         * occurs automatically.
         *
         * @member {number}
         * @default settings.SPRITE_BATCH_SIZE * 4
         */
        this.size = settings.SPRITE_BATCH_SIZE * 4;

        /**
         * Total count of all vertices used by the currently
         * buffered objects.
         *
         * @member {number}
         * @private
         */
        this._vertexCount = 0;

        /**
         * Total count of all indices used by the currently
         * buffered objects.
         *
         * @member {number}
         * @private