---
id: gk-gravitymigrate-background-import-step-runner
title: "Filter - gk/gravitymigrate/background/import-step-runner"
sidebar_label: "gk/gravitymigrate/background/import-step-runner"
---

# Filter: gk/gravitymigrate/background/import-step-runner

Filters the callable the import background driver loops to advance one slice.

The test seam for ImportJobDriver: a test may substitute a scripted callable for the real import route, without needing a staged bundle, Gravity Forms, or wpdb in scope.

## Parameters

| Name | Type | Description |
|------|------|-------------|
| $step_runner | `callable` | The <code>import</code> AJAX route closure, by default. |

### Since

- %ver%: %ver%

### Source

Defined in `src/Background/ImportJobDriver.php` at line 434