{"ast_node_type":"other","tokens":[{"end":91,"kind":"keyword","start":0,"text":".and_then(|completion_item_caps|"}]}
            .and_then(|completion_item_caps| completion_item_caps.resolve_support.as_ref())
            .and_then(|completion_caps| completion_caps.completion_item.as_ref())
            .map(|resolve_support| resolve_support.properties.iter())