---
title: "Data function - argument-reference"
slug: "argument-reference"
updated: 2022-07-27T14:21:19Z
published: 2022-07-27T14:21:19Z
canonical: "code.tag.bio/argument-reference"
---

> ## Documentation Index
> Fetch the complete documentation index at: https://code.tag.bio/llms.txt
> Use this file to discover all available pages before exploring further.

# argument-reference

### argument-reference

**creates: *categorical/numeric collection or variable***

An `argument-reference` data function represents a categorical/numeric `collection` or `variable` to be replaced by the user's selections from an associated `argument`. When the `argument` is provided to the `protocol` the `argument-reference` will be removed.

| **attribute** | **type** | **description** | **options** |
| --- | --- | --- | --- |
| `name` | string | connects to an `argument` | must match `argument_name` for associated `argument` |
| `handler` | string | connects to the results of an `argument` | must match `handler` for the associated `argument` |

```
{
  "data_function_type": "argument-reference",
  "name": "argument_name",
  "handler": "handler_name"
}
```