syntax_data: {"ast_node_type":"other","tokens":[{"end":60,"kind":"keyword","start":0,"text":"\"deduplicate"}]}
source_snippet:         "deduplicate identical diagnostics (default: yes)"),
context_before:     deduplicate_diagnostics: bool = (true, parse_bool, [UNTRACKED],
context_after:     default_visibility: Option<SymbolVisibility> = (None, parse_opt_symbol_visibility, [TRACKED],