use Error;
use crateAccountSetId;
/// Error type for [`super::AccountSetMembers::attach_new_accounts_in_op`] —
/// the ONLY method on this module whose failure mode is a domain error
/// rather than a bare `sqlx::Error`. Every other method (locks, the classic
/// insert/remove, the member reads) propagates `sqlx::Error` directly:
/// callers already sit behind `AccountSetError` / `AccountError`, both of
/// which have a blanket `From<sqlx::Error>`, so a dedicated variant here
/// would be pure ceremony.
pub