/**
 * Internal types used by the streaming implementation
 * These are not exported to consumers of the library
 */
/**
 * Low-level streaming events used internally by providers
 * These get transformed into AgentStreamEvent by UIEventAdapter
 */
export type StreamEvent = {
    type: "start";
    conversationId: string;
} | {
    type: "token";
    token: string;
} | {
    type: "message";
    message: string;
} | {
    type: "tool_call_start";
    toolCall: {
        id: string;
        name: string;
    };
} | {
    type: "tool_call_delta";
    toolCallId: string;
    argumentDelta: string;
} | {
    type: "tool_call_parsed";
    toolCall: {
        id: string;
        name: string;
        arguments: string;
    };
} | {
    type: "tool_call_complete";
    toolCall: {
        id: string;
        name: string;
        arguments: string;
    };
    result?: unknown;
    error?: string;
} | {
    type: "complete";
    messageId?: string;
    conversationId?: string;
    tokens?: number;
    usage?: {
        promptTokens: number;
        completionTokens: number;
        totalTokens: number;
        model?: string;
        provider?: string;
    };
} | {
    type: "error";
    error: string;
} | {
    type: "context_window";
    usage: {
        usedTokens: number;
        maxTokens: number;
        percentage: number;
        remainingTokens: number;
    };
} | {
    type: "reasoning_start";
    format: "thinking_tag" | "markdown" | "custom";
} | {
    type: "reasoning_delta";
    content: string;
    format: "thinking_tag" | "markdown" | "custom";
} | {
    type: "reasoning_end";
    fullContent: string;
    signature?: string;
};