syntax_data: {"ast_node_type":"other","tokens":[{"end":53,"kind":"keyword","start":0,"text":"i64:64-i128:128-f80:128-n8:16:32:64-S128\""}]}
source_snippet:             i64:64-i128:128-f80:128-n8:16:32:64-S128"
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context_after:             .into(),