Snowflake is comparable to UInt64

[z64]

This makes Snowflake a little easier to work with for a common simple use case, comparing to a known literal value:

client.on_message_create do |payload|
  next unless payload.author.id == 120571255635181568_u64
  # Only process messages from z64 here
end

Currently you need to do payload.author.id.to_u64, etc.