syntax_data: {"ast_node_type":"other","tokens":[{"end":27,"kind":"keyword","start":0,"text":".collect(),"}]}
source_snippet:                 .collect(),
context_before:             expn_hash_to_expn_id: iter::once((ExpnHash(Fingerprint::ZERO), ExpnId::root()))
context_after:             syntax_context_data: vec![root_ctxt_data],