Find example of anchor IDL with account using namespaced accounts

[billythedummy]

Apparently in anchor if you do

#[account("my_namespace")]
pub struct MyAccount {
  ...
}

Your account discriminator sha256 pre-image becomes "my_namespace:{account_name}" instead of "account:{account_name}".

Haven't found an example of how that's represented in the IDL yet.

Reference: https://github.com/coral-xyz/anchor/blob/f79f9dab740cb6be0df678ec547c5c3b1209f518/lang/attribute/account/src/lib.rs#L74-L109