In processRow there is line to initialize outputRowMeta

data.outputRowMeta = getInputRowMeta().clone();

This works for example addXLM
In my project getInputRowMeta().clone() returns null.

I guess that this is because there are multiple input steps, all with
a different field layout.

Can someone explain where the initialization of InputRowMeta is
supposed to happen and how i can fetch the InputRowMeta of inputstep x.

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