/** Represents a filter for message search results */
export declare type SearchMessagesFilterInputUnion = SearchMessagesFilterEmptyInput | SearchMessagesFilterAnimationInput | SearchMessagesFilterAudioInput | SearchMessagesFilterDocumentInput | SearchMessagesFilterPhotoInput | SearchMessagesFilterVideoInput | SearchMessagesFilterVoiceNoteInput | SearchMessagesFilterPhotoAndVideoInput | SearchMessagesFilterUrlInput | SearchMessagesFilterChatPhotoInput | SearchMessagesFilterCallInput | SearchMessagesFilterMissedCallInput | SearchMessagesFilterVideoNoteInput | SearchMessagesFilterVoiceAndVideoNoteInput | SearchMessagesFilterMentionInput | SearchMessagesFilterUnreadMentionInput;
/** Returns all found messages, no filter is applied */
export interface SearchMessagesFilterEmptyInput {
    _: 'searchMessagesFilterEmpty';
}
/** Returns only animation messages */
export interface SearchMessagesFilterAnimationInput {
    _: 'searchMessagesFilterAnimation';
}
/** Returns only audio messages */
export interface SearchMessagesFilterAudioInput {
    _: 'searchMessagesFilterAudio';
}
/** Returns only document messages */
export interface SearchMessagesFilterDocumentInput {
    _: 'searchMessagesFilterDocument';
}
/** Returns only photo messages */
export interface SearchMessagesFilterPhotoInput {
    _: 'searchMessagesFilterPhoto';
}
/** Returns only video messages */
export interface SearchMessagesFilterVideoInput {
    _: 'searchMessagesFilterVideo';
}
/** Returns only voice note messages */
export interface SearchMessagesFilterVoiceNoteInput {
    _: 'searchMessagesFilterVoiceNote';
}
/** Returns only photo and video messages */
export interface SearchMessagesFilterPhotoAndVideoInput {
    _: 'searchMessagesFilterPhotoAndVideo';
}
/** Returns only messages containing URLs */
export interface SearchMessagesFilterUrlInput {
    _: 'searchMessagesFilterUrl';
}
/** Returns only messages containing chat photos */
export interface SearchMessagesFilterChatPhotoInput {
    _: 'searchMessagesFilterChatPhoto';
}
/** Returns only call messages */
export interface SearchMessagesFilterCallInput {
    _: 'searchMessagesFilterCall';
}
/** Returns only incoming call messages with missed/declined discard reasons */
export interface SearchMessagesFilterMissedCallInput {
    _: 'searchMessagesFilterMissedCall';
}
/** Returns only video note messages */
export interface SearchMessagesFilterVideoNoteInput {
    _: 'searchMessagesFilterVideoNote';
}
/** Returns only voice and video note messages */
export interface SearchMessagesFilterVoiceAndVideoNoteInput {
    _: 'searchMessagesFilterVoiceAndVideoNote';
}
/**
 * Returns only messages with mentions of the current user, or messages that are replies
 * to their messages
 */
export interface SearchMessagesFilterMentionInput {
    _: 'searchMessagesFilterMention';
}
/**
 * Returns only messages with unread mentions of the current user, or messages that
 * are replies to their messages. When using this filter the results can't be additionally
 * filtered by a query or by the sending user
 */
export interface SearchMessagesFilterUnreadMentionInput {
    _: 'searchMessagesFilterUnreadMention';
}