export type ValidationSeverity = "error" | "warning";
export interface ValidationIssue {
    path: string;
    message: string;
    severity: ValidationSeverity;
}
export declare function describeValue(value: unknown): string;
export declare function isRecord(value: unknown): value is Record<string, unknown>;
export declare function createValidationIssue(path: string, message: string, severity?: ValidationSeverity): ValidationIssue;
export declare function pushValidationIssue(issues: ValidationIssue[], path: string, message: string, severity?: ValidationSeverity): void;
/**
 * Prepends `prefix` to the `path` of each issue.
 *
 * Idempotency guard: if an issue's path is already equal to `prefix` or already
 * starts with `${prefix}.`, it is passed through unchanged. This makes the
 * function safe to call on a mix of already-prefixed and unprefixed issues without
 * producing double-prefixed paths.
 *
 * Empty paths become `prefix` with no separator.
 */
export declare function prefixValidationIssues(prefix: string, issues: ValidationIssue[]): ValidationIssue[];
export declare function formatValidationIssues(issues: ValidationIssue[]): string;
export declare function requireKeys(value: unknown, path: string, keys: readonly string[]): ValidationIssue[];
//# sourceMappingURL=basic.d.ts.map