https://RustRocket.rs -- Cloud Monk Losang Jinpa, Ph.D., MCSE / MCT, https://Rustaceans.rs, Full Stack Cloud Native Rust DevOps Engineer - Rocket Framework Rust Microservices on Kubernetes-AWS-Azure-GCP

“detection idiom - a pattern used with templates to detect whether certain expressions are valid or ill formed for a particular sequence of template arguments, frequently used for compile-time dispatch; see otsuka20.” (EMCppSfe 2021)