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# Inspecting an Engine

## Overview

[`Engine.get`](/docs/engine/get) returns the currently installed overrides. Default implementations
are fallbacks rather than registered overrides, so a fresh registry returns an empty object.

The returned Engine is a copy. Mutating it does not change the installed overrides.

## Recipes

### Check an Installed Slot

Read a slot when application startup needs to confirm which overrides are present.

```ts twoslash
import { Engine } from 'viem'
import { Engine as WasmEngine } from 'viem/wasm'

await WasmEngine.install()

const { Hash } = Engine.get() // [!code focus]
```

### Preserve an Engine

Capture the current overrides before temporarily replacing them.

```ts twoslash
import { Engine } from 'viem'
import { Engine as NodeEngine } from 'viem/node'

const previous = Engine.get() // [!code focus]

await NodeEngine.install()
Engine.reset()
Engine.set(previous) // [!code focus]
```

## `Engine.get`

Returns the installed Engine overrides.

### Usage

```ts twoslash
import { Engine } from 'viem'

const engine = Engine.get()
// @log: {}
```

### Definition

```ts
function get(): Engine.Engine
```

### Return Value

`Engine.Engine`

A copy of the installed overrides.