/** Describes the type of an inline keyboard button */
export declare type InlineKeyboardButtonTypeUnion = InlineKeyboardButtonTypeUrl | InlineKeyboardButtonTypeCallback | InlineKeyboardButtonTypeCallbackGame | InlineKeyboardButtonTypeSwitchInline | InlineKeyboardButtonTypeBuy;
/** A button that opens a specified URL */
export interface InlineKeyboardButtonTypeUrl {
    _: 'inlineKeyboardButtonTypeUrl';
    /** HTTP or tg:// URL to open */
    url: string;
}
/** A button that sends a special callback query to a bot */
export interface InlineKeyboardButtonTypeCallback {
    _: 'inlineKeyboardButtonTypeCallback';
    /** Data to be sent to the bot via a callback query */
    data: string;
}
/**
 * A button with a game that sends a special callback query to a bot. This button must
 * be in the first column and row of the keyboard and can be attached only to a message
 * with content of the type messageGame
 */
export interface InlineKeyboardButtonTypeCallbackGame {
    _: 'inlineKeyboardButtonTypeCallbackGame';
}
/** A button that forces an inline query to the bot to be inserted in the input field */
export interface InlineKeyboardButtonTypeSwitchInline {
    _: 'inlineKeyboardButtonTypeSwitchInline';
    /** Inline query to be sent to the bot */
    query: string;
    /** True, if the inline query should be sent from the current chat */
    inCurrentChat: boolean;
}
/**
 * A button to buy something. This button must be in the first column and row of the
 * keyboard and can be attached only to a message with content of the type messageInvoice
 */
export interface InlineKeyboardButtonTypeBuy {
    _: 'inlineKeyboardButtonTypeBuy';
}