export interface TextInputContentPart {
    type: 'text';
    text: string;
}
export interface ToolUseInputContentPart {
    type: 'tool_use';
    id: string;
    name: string;
    input: Record<string, unknown>;
}
export interface ToolResultInputContentPart {
    type: 'tool_result';
    tool_use_id: string;
    content?: string | {
        type: string;
        text?: string;
        [key: string]: unknown;
    }[];
    is_error?: boolean;
}
export interface GenericInputContentPart {
    type: string;
    [key: string]: unknown;
}
export type InputContentPart = TextInputContentPart | ToolUseInputContentPart | ToolResultInputContentPart | GenericInputContentPart;
export interface InputMessage {
    role: string;
    content: string | InputContentPart[];
    metadata?: Record<string, unknown>;
}
export interface SDKSystemMessage {
    type: 'system';
    subtype: string;
    session_id?: string;
    [key: string]: unknown;
}
export interface SDKStreamEvent {
    type: 'stream_event';
    event: unknown;
    session_id?: string;
    [key: string]: unknown;
}
export interface SDKUserMessage {
    type: 'user';
    message: unknown;
    [key: string]: unknown;
}
export interface SDKAssistantMessage {
    type: 'assistant';
    message: unknown;
    [key: string]: unknown;
}
export interface SDKResultMessage {
    type: 'result';
    subtype: string;
    usage?: {
        input_tokens?: number;
        output_tokens?: number;
        cache_creation_input_tokens?: number;
        cache_read_input_tokens?: number;
        [key: string]: unknown;
    };
    [key: string]: unknown;
}
export interface SDKGenericMessage {
    type: string;
    [key: string]: unknown;
}
export type AgentMessage = SDKSystemMessage | SDKStreamEvent | SDKUserMessage | SDKAssistantMessage | SDKResultMessage | SDKGenericMessage;