import type { ChatMessage, CompletionRequest, ProviderId, ReasoningPreference, ToolCallStreamDelta, ToolDefinition } from "../../../types.js";
export interface StreamRequestInput {
    readonly provider: ProviderId;
    readonly model: string;
    readonly messages: ChatMessage[];
    readonly allowModelFallback: boolean;
    readonly preferModelFallback: boolean;
    readonly maxTokens: number | undefined;
    readonly signal: AbortSignal | undefined;
    readonly thinking: ReasoningPreference | undefined;
    readonly retryWithoutThinking: boolean;
    readonly toolsAttached: boolean;
    readonly tools: ToolDefinition[] | undefined;
    readonly onToolCallDelta: (delta: ToolCallStreamDelta) => void;
}
export declare const buildStreamRequest: (input: StreamRequestInput) => CompletionRequest;