How to use the @pixi/utils.correctBlendMode function in @pixi/utils

{
            shader.uniforms.uMapCoord = uv.mapCoord.toArray(true);
            shader.uniforms.uClampFrame = uv.uClampFrame;
            shader.uniforms.uClampOffset = uv.uClampOffset;
        }

        shader.uniforms.uTransform = tempMat.toArray(true);
        shader.uniforms.uColor = premultiplyTintToRgba(ts.tint, ts.worldAlpha,
            shader.uniforms.uColor, baseTex.alphaMode);
        shader.uniforms.translationMatrix = ts.transform.worldTransform.toArray(true);
        shader.uniforms.uSampler = tex;

        renderer.shader.bind(shader);
        renderer.geometry.bind(quad);// , renderer.shader.getGLShader());

        this.state.blendMode = correctBlendMode(ts.blendMode, baseTex.alphaMode);
        renderer.state.set(this.state);
        renderer.geometry.draw(this.renderer.gl.TRIANGLES, 6, 0);
    }
}

else if (totalChildren > maxSize && !container.autoResize)
        {
            totalChildren = maxSize;
        }

        let buffers = container._buffers;

        if (!buffers)
        {
            buffers = container._buffers = this.generateBuffers(container);
        }

        const baseTexture = children[0]._texture.baseTexture;

        // if the uvs have not updated then no point rendering just yet!
        this.state.blendMode = correctBlendMode(container.blendMode, baseTexture.alphaMode);
        renderer.state.set(this.state);

        const gl = renderer.gl;

        const m = container.worldTransform.copyTo(this.tempMatrix);

        m.prepend(renderer.globalUniforms.uniforms.projectionMatrix);

        this.shader.uniforms.translationMatrix = m.toArray(true);

        this.shader.uniforms.uColor = premultiplyRgba(container.tintRgb,
            container.worldAlpha, this.shader.uniforms.uColor, baseTexture.alphaMode);

        this.shader.uniforms.uSampler = baseTexture;

        this.renderer.shader.bind(this.shader);