syntax_data: {"ast_node_type":"other","tokens":[{"end":90,"kind":"keyword","start":0,"text":"///"}]}
source_snippet:     /// and applying this env_predicate constrains any of the obligation's GAT parameters.
context_before:     /// `No` if it does not. Return `Ambiguous` in the case that the projection type is a GAT,
context_after:     ///