import ts from './typescript-api.mts';
import type { ContractSchemaNode } from '../openapi-document/contract-schema-types.mts';
export declare function namedObjectDefinition(type: ts.Type, checker: ts.TypeChecker): string | undefined;
export declare function distinctNodes(nodes: ContractSchemaNode[]): ContractSchemaNode[];
export declare function assertNotClass(type: ts.Type, checker: ts.TypeChecker): void;
export declare function jsonPromiseType(type: ts.Type, checker: ts.TypeChecker): ts.Type | undefined;
export declare function jsonSerializedType(type: ts.Type, checker: ts.TypeChecker): ts.Type | undefined;
export declare function unsupportedType(type: ts.Type, checker: ts.TypeChecker, reason: string): Error;
export declare function compareSymbols(left: ts.Symbol, right: ts.Symbol): number;