How can I refer to the render target in Unity after postprocessing?

In Unity’s Universal Render Pipeline, there is a PostProcessPass class in PostProcessing.cs .

What I would like to know, how I can refer to the buffer, where the postprocess effects are loaded into (final color buffer of the postprocessing effects).

My first guess was the cameraTargetHandle, which has got a renderTarget member, but this is always null.

I am using the default implementation of BoatAttack game (GitHub - Unity-Technologies/BoatAttack: Demo Project using the Universal RP from Unity3D).

void Render(CommandBuffer cmd, ref RenderingData renderingData)
{
    // ....
    else if (!m_UseSwapBuffer)
    {
        var firstSource = GetSource();
        Blitter.BlitCameraTexture(cmd, firstSource, GetDestination(), colorLoadAction, RenderBufferStoreAction.Store, m_Materials.uber, 0);
        Blitter.BlitCameraTexture(cmd, GetDestination(), m_Destination, RenderBufferLoadAction.DontCare, RenderBufferStoreAction.Store, m_BlitMaterial, m_Destination.rt?.filterMode == FilterMode.Bilinear ? 1 : 0);
    }
    else if (m_ResolveToScreen)
    {
        if (resolveToDebugScreen)
        {
            debugHandler.BlitTextureToDebugScreenTexture(cmd, GetSource(), m_Materials.uber, 0);
            renderer.ConfigureCameraTarget(debugHandler.DebugScreenColorHandle, debugHandler.DebugScreenDepthHandle);
        }
        else
        {
            // Get RTHandle alias to use RTHandle apis
            RenderTargetIdentifier cameraTarget = cameraData.targetTexture != null ? new RenderTargetIdentifier(cameraData.targetTexture) : cameraTargetID;
            RTHandleStaticHelpers.SetRTHandleStaticWrapper(cameraTarget);
            var cameraTargetHandle = RTHandleStaticHelpers.s_RTHandleWrapper;

            RenderingUtils.FinalBlit(cmd, ref cameraData, GetSource(), cameraTargetHandle, colorLoadAction, RenderBufferStoreAction.Store, m_Materials.uber, 0);
            renderer.ConfigureCameraColorTarget(cameraTargetHandle);
        }
    }
}

Any help is appreciated!