    # File lib/fog/openstack/compute.rb, line 310
            def credentials
              { :provider                 => 'openstack',
                :openstack_auth_url       => @openstack_auth_uri.to_s,
                :openstack_auth_token     => @auth_token,
                :openstack_management_url => @openstack_management_url,
                :openstack_identity_endpoint => @openstack_identity_public_endpoint,
                :openstack_region         => @openstack_region,
                :current_user             => @current_user,
                :current_tenant           => @current_tenant }
            end