import type { ChatMessage, ProviderId, ReasoningEffort } from "../../types.js";
export declare function isReasoningUnsupportedError(error: unknown): boolean;
export interface ReasoningRejectionAdvice {
    mandatory: boolean;
    acceptedEfforts: readonly ReasoningEffort[];
}
export declare function reasoningRejectionAdvice(error: unknown): ReasoningRejectionAdvice | undefined;
export declare function isStreamOptionsUnsupportedError(error: unknown): boolean;
export declare function isImageInputUnsupportedError(error: unknown): boolean;
export declare function stripImagesFromMessages(messages: ChatMessage[]): ChatMessage[];
export declare function imageCapableMessages(provider: ProviderId, model: string, messages: ChatMessage[]): ChatMessage[];