/** Points to a file */
export declare type InputFileInputUnion = InputFileIdInput | InputFileRemoteInput | InputFileLocalInput | InputFileGeneratedInput;
/** A file defined by its unique ID */
export interface InputFileIdInput {
    _: 'inputFileId';
    /** Unique file identifier */
    id?: number;
}
/** A file defined by its remote ID */
export interface InputFileRemoteInput {
    _: 'inputFileRemote';
    /** Remote file identifier */
    id?: string;
}
/** A file defined by a local path */
export interface InputFileLocalInput {
    _: 'inputFileLocal';
    /** Local path to the file */
    path?: string;
}
/** A file generated by the client */
export interface InputFileGeneratedInput {
    _: 'inputFileGenerated';
    /**
     * Local path to a file from which the file is generated; may be empty if there is no
     * such file
     */
    originalPath?: string;
    /**
     * String specifying the conversion applied to the original file; should be persistent
     * across application restarts. Conversions beginning with '#' are reserved for internal
     * TDLib usage
     */
    conversion?: string;
    /** Expected size of the generated file; 0 if unknown */
    expectedSize?: number;
}