## Summary of changes
Cast object state to CallTargetState earlier in its usage to add type
safety. Added type checks combined with variable declarations when using
the state and scope attributes of CallTargetState.

## Reason for change
Merged [earlier PR adding request id
headers](#7835) to start
and end invocation calls to the lambda extension, needed to improve code
quality post-merge.

## Implementation details

## Test coverage

## Other details
<!-- Fixes #{issue} -->


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