%::%                    Evaluate an S7 call under an interface or trait
                        contract
interface_requirements
                        Inspect or check a Go-like structural interface
new_interface           Build a Go-like structural interface on top of
                        S7
new_trait               Build a Rust-like explicit trait on top of S7
s7contract              s7contract: Contract Helpers for S7
trait_methods           Inspect or use a Rust-like explicit trait
