export type SupportedAssignOperator = '=' | '+=' | '-=' | '*=' | '/=' | '%=' | '**=' | '&=' | '|=' | '^=' | '<<=' | '>>=' | '++' | '--';
export type PostfixMutationOperator = '++' | '--';
export declare const SUPPORTED_ASSIGN_OPERATORS: string[];
export declare function isSupportedAssignOperator(op: string): boolean;
export declare function isPostfixMutationOperator(op: string): boolean;