Get property in duplicate stream if present in parent stream

[ashish-atidiv]

Hi Team

I have a config file that looks like this:

{
    "stream_maps": {
        "stream1": {
            "property1": null,
            "property2": null
        },
        "stream1_split": {
            "__source__": "stream1",
            "id":"id",
            "property1": "property1",
            "property2": "property2",
            "__else__": null
        },
        "stream2": {
            "stream2_property1": null
        },
        "stream2_split": {
            "__source__": "stream2",
            "id":"id",
            "stream2_property1": "stream2_property1",
            "__else__": null
        }
}

Is there a way to define properties in stream1_split such that they are included if present in stream1. As of now, I believe this config assumes the property must be present.