process:execute($args as xs:string+, $options as element()?) as element()| $args+ | a list of strings which signifies the external program file to be invoked and its arguments, if any |
| $options? | an XML fragment defining optional parameters like working directory or the lines to send to the process via stdin. Format: <options><workingDir>workingDir</workingDir><environment><env name="name" value="value"/></environment><stdin><line>line</line></stdin></options> |