import type { GenerationContext, OperationInfo } from "../types.mjs";
/**
 * Resolve the generated Data type name for an operation, falling back to
 * unknown when the SDK signature exposes no Data type.
 * See OperationInfo.dataTypeName for why the name is read from the signature
 * instead of derived from the method name (#213).
 */
export declare function getDataTypeName(op: OperationInfo): string;
/**
 * Get the error type string based on client type.
 * The Error type shares its stem with the Data type — hey-api mints both from
 * the operationId (see OperationInfo.dataTypeName, #213) — so the stem comes
 * from `dataTypeName` rather than the method name. The modelNames probe stays
 * because operations without error responses have no generated Error type.
 */
export declare function getErrorType(op: OperationInfo, ctx: GenerationContext): string;