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# isImplicitTag

Field in [StringInfo](/2.0/api/csharp/yarn.compiler/yarn.compiler.stringinfo.md)

## Summary

Indicates whether this string's line ID was implicitly generated.

```csharp
public bool isImplicitTag;
```

## Remarks

Implicitly generated line IDs are not guaranteed to remain the same across multiple compilations. To ensure that a line ID remains the same, you must define it by adding a line tag to the line.