Engine trait over the draft-7 ABI plus MockEngine: a pure-Rust engine implementing every tick/state-op/registration semantic for tests and the worker skeleton
//! The shared harness lives in the library (`superfluid_engine::testing`) so other engines can prove
//! the same contract; this module keeps the tests' `common::` spelling.
#![allow(unused_imports)]pubusesuperfluid_engine::testing::*;