syntax_data: {"ast_node_type":"other","tokens":[{"end":56,"kind":"keyword","start":0,"text":"input_stats:"}]}
source_snippet:     input_stats: bool = (false, parse_bool, [UNTRACKED],
context_before:         "a default MIR inlining threshold (default: 50)"),
context_after:         "print some statistics about AST and HIR (default: no)"),