syntax_data: {"ast_node_type":"import","tokens":[{"end":95,"kind":"keyword","start":0,"text":"//"}]}
source_snippet:                 // We use identity args here, because we already know that the opaque type uses
context_before:                 // Collect opaque types nested within the associated type bounds of this opaque type.
context_after:                 // only generic parameters, and thus instantiating would not give us more information.