syntax_data: {"ast_node_type":"other","tokens":[{"end":69,"kind":"keyword","start":0,"text":"this.as_temp(block,"}]}
source_snippet:                 this.as_temp(block, temp_lifetime, value, mutability)
context_before:             return this.in_scope((region_scope, source_info), lint_level, |this| {
context_after:             });