# GetLineIDsForNodes(IEnumerable\<string>)

Method in [YarnProject](/2.4/api/csharp/yarn.unity/yarn.unity.yarnproject.md)

## Summary

Returns a list of all line and option IDs within the requested nodes

```csharp
public IEnumerable<string> GetLineIDsForNodes(IEnumerable<string> nodes)
```

## Remarks

This is intended to be used either to precache multiple nodes worth of lines or for debugging

## Parameters

| Name                                                   | Description                                    |
| ------------------------------------------------------ | ---------------------------------------------- |
| `System.Collections.Generic.IEnumerable<string>` nodes | the names of all nodes whos line IDs you covet |

## Returns

The ids of all lines and options in the requested `nodes`


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