import type { BaseMessageAction, DefaultMessageAction, TAssistantMessage, TChatMessage, TMessageContent, TMessageContentUnion, TMessageMetadata, TUserMessage } from "../types/index.js";
export declare function isUserMessage<Metadata = TMessageMetadata, TCustomMessageContent extends TMessageContent = never>(message: TChatMessage<TCustomMessageContent, Metadata>): message is TUserMessage<Metadata>;
export declare function isAssistantMessage<Metadata = TMessageMetadata, TCustomMessageContent extends TMessageContent = never>(message: TChatMessage<TCustomMessageContent, Metadata>): message is TAssistantMessage<TCustomMessageContent, Metadata>;
export declare function normalizeContent<TCustomMessageContent extends TMessageContent = never>(content: TAssistantMessage<TCustomMessageContent, TMessageMetadata>['content']): TMessageContentUnion<TCustomMessageContent>[];
/**
 * Check if message content contains ONLY thinking content (no other content types).
 * @param content - Message content to check
 * @returns true if content contains only thinking parts and nothing else
 */
export declare function hasOnlyThinkingContent<TCustomMessageContent extends TMessageContent = never>(content: TAssistantMessage<TCustomMessageContent, TMessageMetadata>['content']): boolean;
export type { ActionPopupContext, ActionPopupConfig } from "../types/index.js";
export declare function resolveMessageActions<TMessage extends TChatMessage<TMessageContent, TMessageMetadata>>(message: TMessage, defaultActions?: DefaultMessageAction<TMessage>[]): BaseMessageAction[] | undefined;