System.Diagnostics.CodeAnalysis.DisallowNullAttribute - API Reference

<PackageReference Include="Microsoft.Extensions.Configuration.EnvironmentVariables" Version="11.0.0-preview.2.26159.112" />

System.Diagnostics.CodeAnalysis.DisallowNullAttribute

sealed class DisallowNullAttribute : Attribute

Specifies that null is disallowed as an input even if the corresponding type allows it.

public DisallowNullAttribute()