syntax_data: {"ast_node_type":"import","tokens":[{"end":76,"kind":"keyword","start":0,"text":"//"}]}
source_snippet:         // symbol name because it is used to import items from another crate
context_before:         // Items marked as #[rustc_std_internal_symbol] need to have a fixed
context_after:         // without a direct dependency. As such it is not possible to look up