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Contribution guide.

Is your feature request related to a problem? Please describe.
I want to pass some custom params to /SSE endpoint may be in Body (or) headers, I havent seen any place where I can do it? I need to pass params like tenant/facility/role, how can I pass and consume the same?

Describe the solution you'd like
NA

Describe alternatives you've considered
Over-riding the codebase

Additional context