getFunctionSelector for AbiFunction

[hexcowboy]

Right now I don't see any utility to get a function selector from an AbiFunction. It would be useful to have this to avoid having to convert the AbiFunction to a string that can be parsed by the current getFunctionSelector, which only accepts ABI function strings right now.

Any work being done on this? I could start working on an implementation and submit a PR.

[jxom]

Go for it

[hexcowboy]

would you prefer reusing the same getFunctionSelector util, changing the parameter to take either string | AbiFunction? or would you prefer a new function be made?

[jxom]

Same makes sense