class Net::IMAP::SASL::CramMD5Authenticator

def initialize(user = nil, pass = nil,
               authcid: nil, username: nil,
               password: nil, secret: nil,
               warn_deprecation: true,
               **)
  if warn_deprecation
    warn "WARNING: CRAM-MD5 mechanism is deprecated.", category: :deprecated
  end
  require "digest/md5"
  @user = authcid || username || user
  @password = password || secret || pass
  @done = false
end