Would you be interested in showing [System.Runtime.CompilerServices.DynamicAttribute()] object as dynamic, similar to the C# syntax that you'd see in intellisense when interacting with the API?

An argument against it might be that it's better to put lower-level realities in your face in case the API is used from a language where the attribute is not specially-recognized.

Maybe an argument for it would be that it would be consistent with [ParamsAttribute], [ExtensionAttribute], etc, and the same kind of thing with C# 8 attributes: #54

A few other attributes have cropped up like the ones for the C# 7.0 ref and readonly keywords when declaring a struct:

public readonly ref struct Foo
{
}

Desugared:

[IsByRefLike]
[Obsolete("Types with embedded references are not supported in this version of your compiler.", true)]
[IsReadOnly]
public struct Foo
{
}

https://sharplab.io/#v2:EYLgxg9gTgpgtADwGwBYA+ABAzAAlgQwBMIA7AGwE88YAzHAZwBcoBXMRnAMQggFgAoAN4CAvkA=