tarifa/lib/platforms/ios/actions/create/plugin/template/plugin_use_variables.xml

Your friendly toolchain for mobile app development on top of Apache Cordova

        <config-file target="*-Info.plist" parent="CDVInstallVariables">
            <dict>
                <key>REQUIRED_VARIABLE</key>
                <string>$REQUIRED_VARIABLE</string>
                <key>OPTIONAL_VARIABLE</key>
                <string>$OPTIONAL_VARIABLE</string>
            </dict>
        </config-file>