/**
 * Utilities for working with STRUCTS in generated Wrekenfiles.
 * - Filters out unused structs (no STRUCT(...) reference anywhere)
 */
/**
 * Extract all struct names from a type string, e.g.:
 * - "STRUCT(User)" -> ["User"]
 * - "[]STRUCT(model.User)" -> ["model.User"]
 * - "map[string]STRUCT(api.Request)" -> ["api.Request"]
 */
export declare function extractAllStructNames(typeString: string): string[];
/**
 * Filter STRUCTS map on a Wrekenfile object to only keep structs that are actually used.
 * Usage is any occurrence of STRUCT(Name) in:
 * - METHOD.INPUTS / RETURNS / ERRORS
 * - HTTP.BODY.TYPE
 * - ASYNC.RESULT.TYPE
 * plus transitive references inside other structs.
 */
export declare function filterStructsByUsage(wrekenfile: any): void;
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