Translate default message

Hello, I am using dry-validation and I have a question about the translations of the default messages, in this example contract

class ClientContract < ApplicationContract
  params do
     required(:age).value(:integer)
rule(:age) do
    key.failure("la edad no puede ser mayor a 80") if key? && values[:age] >= 80
  end
end

errors like “is missing” or “must be a integer”
the doubts are:
1 .- what is the structure that I have to use in the errors.yml file?
2.- where do I find the list of all possible messages?

I have looked in the documentation and in the forum but I cannot find the solution.

It’s explained in the docs:

Default error messages used by schemas are in the dry-schema repo: dry-schema/errors.yml at master · dry-rb/dry-schema · GitHub