{"ast_node_type":"other","tokens":[{"end":94,"kind":"keyword","start":0,"text":"//!"}]}
//! Ordinarily, free regions are unrelated to one another, but they can be related via implied
//! This module handles the relationships between "free regions", i.e., lifetime parameters.
//! or explicit bounds. In that case, we track the bounds using the `TransitiveRelation` type,