DynamoVisualProgramming.DynamoServices by Autodesk

<PackageReference Include="DynamoVisualProgramming.DynamoServices" Version="4.2.1.5887" />

 ExtensionStartupParams

public struct ExtensionStartupParams
An options structure used when calling IExtensionApplication.Startup
public bool DisableADP { get; set; }

Disables ADP data collection.

public string Locale { get; }

Gets the locale to use during extension startup, expressed as a BCP 47 culture name such as en-US (see Name). A null or empty value indicates that no explicit locale was provided by the host.