import type { LLMMessage, LLMContentBlock } from '../core/llm/llm-provider.js';
export interface PiAiModelInfo {
    api: string;
    provider: string;
    id: string;
    baseUrl?: string;
    [key: string]: unknown;
}
export interface PiAiStreamEvent {
    type: string;
    text?: string;
    delta?: string;
    toolCall?: {
        id: string;
        name: string;
        arguments?: Record<string, unknown>;
        partialArgs?: string;
        partial?: boolean;
    };
    usage?: {
        input: number;
        output: number;
    };
    stopReason?: string;
    reason?: string;
    thinking?: string;
    message?: {
        content?: Array<{
            type: string;
            text?: string;
            thinking?: string;
            id?: string;
            name?: string;
            arguments?: Record<string, unknown>;
        }>;
        usage?: {
            input: number;
            output: number;
        };
    };
    error?: {
        errorMessage?: string;
        content?: Array<{
            type: string;
            text?: string;
            thinking?: string;
            id?: string;
            name?: string;
            arguments?: Record<string, unknown>;
            partial?: boolean;
            partialArgs?: string;
        }>;
        usage?: {
            input: number;
            output: number;
        };
        stopReason?: string;
        [key: string]: unknown;
    };
}
export type PiErrAssistantBlock = {
    type?: string;
    text?: string;
    thinking?: string;
    id?: string;
    name?: string;
    arguments?: Record<string, unknown>;
    partial?: boolean;
    partialArgs?: string;
};
export type PiAiModelCost = {
    input: number;
    output: number;
    cacheRead: number;
    cacheWrite: number;
};
export declare function mergePiAiModelCost(incoming: unknown): PiAiModelCost;
export declare function normalizePiAiModelInfo(model: PiAiModelInfo, baseUrl?: string): PiAiModelInfo;
export declare function rejectAnthropicOAuthToken(apiKey: string, api: string | undefined): void;
export declare function appendToolUseBlock(content: LLMContentBlock[], tc: {
    id: string;
    name: string;
    arguments?: Record<string, unknown>;
    input?: Record<string, unknown>;
}): void;
export declare function isPiAssistantToolCallBlockType(type: string | undefined): boolean;
export declare function defaultRepairToolCallUrl(url: string): string;
export declare function tryParsePartialArgsString(s: string): Record<string, unknown> | null;
export declare function normalizeToolCallArgumentsFromAssistantBlock(block: PiErrAssistantBlock, repairToolCallUrl?: (url: string) => string): Record<string, unknown>;
export declare function extractAssistantBlockThinking(block: PiErrAssistantBlock): string;
export declare function extractErrorPayloadText(payload: NonNullable<PiAiStreamEvent['error']> | undefined): string;
export declare function buildProviderRuntimeErrorMessage(payload: NonNullable<PiAiStreamEvent['error']> | undefined, fallback?: string): string;
export declare function hasProviderRuntimeErrorSignal(payload: NonNullable<PiAiStreamEvent['error']> | undefined): boolean;
export declare function resolvePiStreamErrorPayload(event: PiAiStreamEvent): NonNullable<PiAiStreamEvent['error']> | undefined;
export declare function resolveToolFollowReasoningSuppress(internalMessages: LLMMessage[] | undefined, converted: readonly unknown[]): boolean;
export declare function hasThinkingModeConfigured(model: PiAiModelInfo, providerReasoning: string | null | undefined, requestReasoning: string | null | undefined): boolean;
export declare function hasProviderNativeThinkingHistory(model: PiAiModelInfo, providerReasoning: string | null | undefined): boolean;
export declare function hasAssistantThinkingHistory(messages: LLMMessage[] | undefined): boolean;
export declare function convertMessages(messages: LLMMessage[], model: PiAiModelInfo, thinkingMode: boolean): unknown[];
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