import * as t from '@babel/types';
/**
 * Checks if a node is meaningful. Does not recurse into children.
 * @param node - The node to check
 * @returns Whether the node is meaningful
 */
export declare function isMeaningful(node: t.Node): boolean;
export declare function isStaticExpression(expr: t.Expression | t.JSXEmptyExpression, jsxStatic?: false): {
    isStatic: boolean;
    value?: string;
};
export declare function isStaticExpression(expr: t.Expression | t.JSXEmptyExpression, jsxStatic?: true): {
    isStatic: boolean;
    value?: string | boolean | null;
};
export declare function isStaticExpression(expr: t.Expression | t.JSXEmptyExpression, jsxStatic?: boolean): {
    isStatic: boolean;
    value?: string | boolean | null;
};
/**
 * Checks if an expression is a static value (a string, number, or template literal).
 * @param expr - The expression to check
 * @returns Whether the expression is a static value
 */
export declare function isStaticValue(expr: t.Expression | t.JSXEmptyExpression): boolean;
/**
 * Checks if a string is a valid ICU message format.
 * @param string - The string to check
 * @returns Whether the string is a valid ICU message format
 */
export declare function isValidIcu(string: string): {
    isValid: boolean;
    error?: string;
};