<PackageReference Include="System.Threading.Tasks.Extensions" Version="4.5.2" />
System.Runtime.CompilerServices.AsyncMethodBuilderAttribute
namespace System.
Runtime.
CompilerServices
{
public sealed class AsyncMethodBuilderAttribute :
Attribute
{
public Type BuilderType { get; }
public AsyncMethodBuilderAttribute(
Type builderType);
}
}
namespace System.
Runtime.
CompilerServices
{
}