import ts from "typescript";
export declare function is_yield_star_expression(node: ts.Node): boolean;
export declare function contains_top_level_await(node: ts.Node): boolean;
export declare function collect_yield_star_nodes(node: ts.Node, on_found: (node: ts.Node) => void): void;
export declare function find_yield_star_node(node: ts.Node, on_found: (node: ts.Node) => void): void;