syntax_data: {"ast_node_type":"other","tokens":[{"end":57,"kind":"keyword","start":0,"text":"opaque_and_semiopaque:"}]}
source_snippet:             opaque_and_semiopaque: SyntaxContext::root(),
context_before:             opaque: SyntaxContext::root(),
context_after:             dollar_crate_name: kw::DollarCrate,