How to use the @pixi/core.BaseTexture._globalBatch function in @pixi/core

currentGroup.textures.elements[currentGroup.textures.count++] = nextTexture;
                    textureCount++;
                }
            }

            currentGroup.size += data.size;
            index += data.size;

            textureId = nextTexture._batchLocation;

            this.addColors(colors, style.color, style.alpha, data.attribSize);
            this.addTextureIds(textureIds, textureId, data.attribSize);
        }

        BaseTexture._globalBatch = TICK;

        // upload..
        // merge for now!
        this.packAttributes();
    }

buildDrawCalls()
    {
        let TICK = ++BaseTexture._globalBatch;

        for (let i = 0; i < this.drawCalls.length; i++)
        {
            this.drawCalls[i].textures.length = 0;
            DRAW_CALL_POOL.push(this.drawCalls[i]);
        }

        this.drawCalls.length = 0;

        const colors = this.colors;
        const textureIds = this.textureIds;

        let currentGroup =  DRAW_CALL_POOL.pop();

        if (!currentGroup)
        {