export interface ThinkingDataInMessage {
    cot_id?: string;
    cot_summary?: string;
    reasoning_opaque?: string;
    reasoning_text?: string;
    reasoning_content?: string;
    reasoning?: string;
}
export interface RawThinkingDelta {
    cot_id?: string;
    cot_summary?: string;
    reasoning_opaque?: string;
    reasoning_text?: string;
    reasoning_content?: string;
    reasoning?: string;
    thinking?: string;
    signature?: string;
}
export type ThinkingDelta = {
    text?: string | string[];
    id: string;
    metadata?: {
        readonly [key: string]: any;
    };
} | {
    text?: string | string[];
    id?: string;
    metadata: {
        readonly [key: string]: any;
    };
} | {
    text: string | string[];
    id?: string;
    metadata?: {
        readonly [key: string]: any;
    };
};
export type EncryptedThinkingDelta = {
    id: string;
    text?: string;
    encrypted: string;
    /**
     * True only for genuine Anthropic `redacted_thinking` blocks, where `encrypted`
     * holds the opaque `data` blob. For regular thinking blocks `encrypted` holds the
     * signature and this is false/undefined, even when the thinking text is empty
     * (e.g. `display: "omitted"` or pruned under token budget).
     */
    redacted?: boolean;
};
export declare function isEncryptedThinkingDelta(delta: ThinkingDelta | EncryptedThinkingDelta): delta is EncryptedThinkingDelta;
export interface ThinkingData {
    id: string;
    text: string | string[];
    metadata?: {
        [key: string]: any;
    };
    tokens?: number;
    encrypted?: string;
    /**
     * True only for genuine Anthropic `redacted_thinking` blocks, where `encrypted`
     * holds the opaque `data` blob. For regular thinking blocks `encrypted` holds the
     * signature and this is false/undefined, even when the thinking text is empty.
     */
    redacted?: boolean;
}
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