Component

consensus, eips, genesis

Describe the feature you would like

the RlpEcdsaDecodableTx trait currently uses associated constants for some decoding functions

this does not work for enum types.

while we can replace this const for encoding with Typed2718

this does not work for decoding.

so we need to change the functions so that they don't use the constant.

the problematic functions are:

because the assume we can decode the fields. but this isn't enough for enums, which require 2718 byte

so we likely need to split this

Additional context

No response