<PackageReference Include="Microsoft.Extensions.Configuration.Abstractions" Version="11.0.0-preview.4.26230.115" />

Microsoft.Extensions.Configuration.ConfigurationIgnoreAttribute

public sealed class ConfigurationIgnoreAttribute : Attribute
Specifies that a configuration property should be excluded from binding.
namespace Microsoft.Extensions.Configuration { public sealed class ConfigurationIgnoreAttribute : Attribute { public ConfigurationIgnoreAttribute(); } }