Description

This adds a way to request etf-encoded payloads and unpack them to get proper payload.

Warning
Snowflakes are sent as int64 (or String, depends, love discord), and not String, like in json.
This can be unstable, also

Connected issues & other potential problems

-/-

Type of change

Please delete options that are not relevant.

• New feature (non-breaking change which adds functionality)

Checklist:

• Ran dart analyze or make analyze and fixed all issues
• Ran dart format --set-exit-if-changed -l 160 ./lib or make format and fixed all issues
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• I have added tests that prove my fix is effective or that my feature works
• I have checked my changes haven't lowered code coverage