declare module 'periscopic' { export function analyze(expression: import('estree').Node): { map: WeakMap; scope: Scope; globals: Map; }; export function extract_names(param: import('estree').Node): string[]; export function extract_identifiers(param: import('estree').Node, nodes?: import('estree').Identifier[]): import('estree').Identifier[]; export class Scope { constructor(parent: Scope | null, block: boolean); parent: Scope | null; block: boolean; declarations: Map; initialised_declarations: Set; references: Set; add_declaration(node: import('estree').VariableDeclaration | import('estree').ClassDeclaration): void; find_owner(name: string): Scope | null; has(name: string): boolean; } } //# sourceMappingURL=index.d.ts.map