# File lib/active_ldap/connection.rb, line 227
    def establish_connection(config=nil)
      message =
        _("ActiveLdap::Connection#establish_connection has been deprecated " \
          "since 1.1.0. " \
          "Please use ActiveLdap::Connection#setup_connection instead.")
      ActiveSupport::Deprecation.warn(message)
      setup_connection(config)
    end