import { BaseConverter, GenerateTypeUtils } from "../converter/BaseConverter.js";
import { IRNode } from "../types.js";
export declare const SWIFT_RESERVED: Set<string>;
/**
 * Converts a JSON property key to a valid Swift identifier:
 * - kebab/snake → camelCase
 * - non-identifier chars stripped
 * - leading digit gets `_` prefix
 * - reserved words wrapped in backticks
 * - empty result becomes "value"
 */
export declare function sanitizeSwiftIdentifier(raw: string): string;
export declare abstract class SwiftBaseConverter extends BaseConverter {
    /** @internal Mutated by SwiftConverter helper modules; not part of the public API. */
    importsSet: Set<string>;
    /** @internal Public for `BaseConverterContext`; treat as protected for subclasses. */
    abstract generateObjectType(ir: IRNode, utils: GenerateTypeUtils): string;
}