export declare function isExpression(value: unknown): value is string;
export declare function containsExpression(value: unknown): boolean;
export declare function shouldSkipLiteralValidation(value: unknown): boolean;
export declare function extractExpressionContent(value: string): string;
export declare function extractBracketExpressions(value: string): string[];
export declare function hasBracketExpression(value: unknown): boolean;
export declare function hasMixedContent(value: unknown): boolean;
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