> For the complete documentation index, see [llms.txt](https://astro-rpa.gitbook.io/astro-rpa-user-guide/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://astro-rpa.gitbook.io/astro-rpa-user-guide/g_elements/el_basic/flow_control/el_logic_link.md).

# Process link

![](/files/6mnvVSTjHMpNy58ak7YX)

Element that performs the process specified in the link.

![](/files/BW4AvsO8KMw5iKy0GDD6)

Properties

* Process path\*: \[String] Path to a process file (c:\folder\file.ltw)
* Mapping\*: \[LTools.Common.Model.VariablesMapping] Arguments mapping
* Run in SnadBox: Execute process in Windows SandBox
* Close: Close SandBox on finish
* Start timeout\*: \[Int32] SandBox start timeout
* Finish timeout\*: \[Int32] Robot finish timeout (0 - infinite)
* Parallel: Start SandBox parallel to main process

LTools.Common.Model.VariablesMapping

Properties:

* \[String] \[Scripting.Model.ScriptVariable]: Variable reference
* ThrowOnKeyNotExists \[Boolean]: Throw exception if argument does not exist

Methods:

* AddMapping(string, Scripting.Model.ScriptVariable): Add new mapping (argument, variable)
* DeleteMapping(string): Delete mapping (argument)

```
C#
//Creating arguments
List<LTools.Workflow.Model.SequenceLinkArg> args = new List<LTools.Workflow.Model.SequenceLinkArg>();
args.Add(new LTools.Workflow.Model.SequenceLinkArg() { Name = "arg1", Value = "val1" });
//Process invoke
args = LTools.Workflow.Elements.WFSequenceLink.CallWorkflow(wf, @"C:\Project\Process.ltw", args);
//Getting arguments
string ret = args.Where(it => it.Name == "arg1").FirstOrDefault().Value as string;

Python
#Creating arguments
args = List[LTools.Workflow.Model.SequenceLinkArg]()
args.Add(LTools.Workflow.Model.SequenceLinkArg("arg1", "val1"))
#Process invoke
args = LTools.Workflow.Elements.WFSequenceLink.CallWorkflow(wf, "C:\\Project\\Process.ltw", args)
#Получаем аргументы
ret = ret[0].Value

JavaScript
let host = new _lib.Microsoft.ClearScript.HostFunctions();
//Creating arguments
let args = host.newObj(_lib.System.Collections.Generic.List(_lib.LTools.Workflow.Model.SequenceLinkArg));
args.Add(new _lib.LTools.Workflow.Model.SequenceLinkArg("arg1", "val1"));
//Process invoke
args = _lib.LTools.Workflow.Elements.WFSequenceLink.CallWorkflow(wf, "C:\\Project\\Process.ltw", args, false);
//Getting arguments
let ret = args[0];
```


---

# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.

## Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter:

```
GET https://astro-rpa.gitbook.io/astro-rpa-user-guide/g_elements/el_basic/flow_control/el_logic_link.md?ask=<question>&goal=<endgoal>
```

`ask` is the immediate question: it should be specific, self-contained, and written in natural language.
`goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal.

The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.