import type { IITerm2Payload, ITerm2FileProperties } from "./iterm2-properties.d.ts";
/**
 * Represents the payload for a complete iTerm2 file transfer or an inline image display command.
 * This class is used to construct the part of the OSC 1337 sequence that follows `File=`.
 * The generated payload can be either:
 * - `File=[PROPERTIES]:[BASE64_CONTENT]` (for inline content)
 * - `File=[PROPERTIES]` (if content is not provided directly, e.g., for a download announcement)
 *
 * Implements {@link IITerm2Payload} for use with the generic `iTerm2` function.
 * @see {@link ITerm2FileProps} for property details.
 * @see {@link iTerm2} for the function that wraps this payload into a full escape sequence.
 */
export declare class ITerm2File implements IITerm2Payload {
    private readonly fileProps;
    /**
     * Constructs an `ITerm2File` payload object.
     * @param properties An object containing properties for the file/image, as defined by {@link ITerm2FileProps}.
     * The `name` property within `props` should be pre-Base64 encoded by the caller if it might
     * contain special characters (like `;`, `=`, or non-ASCII characters).
     * If `fileData` is provided, `props.content` will be overridden, and `props.size` will be
     * set from `fileData.byteLength` if not already present in `props`.
     * @param fileData (Optional) A `Uint8Array` containing the raw file data. If provided, this data will be
     * Base64 encoded and used as the `content` of the file transfer. The `size` property
     * will also be automatically set from `fileData.byteLength` if not specified in `props`.
     */
    constructor(properties: ITerm2FileProperties, fileData?: Uint8Array);
    /**
     * Converts the file properties and its content (if any) into the string payload
     * suitable for the iTerm2 `File=` command.
     * @returns The string payload (e.g., `"File=name=...;size=...:BASE64_CONTENT"` or `"File=name=...;size=..."`).
     */
    toString(): string;
}
/**
 * Represents the payload for ending an iTerm2 multipart file transfer.
 * This class is used to construct the part of the OSC 1337 sequence that is simply `FileEnd`.
 *
 * Implements {@link IITerm2Payload} for use with the generic `iTerm2` function.
 * @see {@link ITerm2MultipartFileStart} to initiate the transfer.
 * @see {@link ITerm2FilePart} for sending file chunks.
 */
export declare class ITerm2FileEnd implements IITerm2Payload {
    /**
     * Generates the string payload for the iTerm2 `FileEnd` command.
     * @returns The string `"FileEnd"`.
     */
    toString(): string;
}
/**
 * Represents the payload for a part (chunk) of an iTerm2 multipart file transfer.
 * This class is used to construct the part of the OSC 1337 sequence that follows `FilePart=`.
 * The provided chunk must already be Base64 encoded.
 *
 * Implements {@link IITerm2Payload} for use with the generic `iTerm2` function.
 * @see {@link ITerm2MultipartFileStart} to initiate the transfer.
 * @see {@link ITerm2FileEnd} to finalize the transfer.
 */
export declare class ITerm2FilePart implements IITerm2Payload {
    private readonly base64Chunk;
    /**
     * Constructs an `ITerm2FilePart` payload object.
     * @param base64Chunk A string containing a Base64 encoded chunk of the file data.
     * The caller is responsible for chunking the file and Base64 encoding each chunk.
     */
    constructor(base64Chunk: string);
    /**
     * Converts the Base64 encoded chunk into the string payload suitable for the iTerm2 `FilePart=` command.
     * @returns The string payload (e.g., `"FilePart=U09NRURBVEE="`).
     */
    toString(): string;
}
/**
 * Represents the payload for starting an iTerm2 multipart file transfer.
 * This class is used to construct the part of the OSC 1337 sequence that follows `MultipartFile=`.
 * This command initiates a transfer; the actual file data is sent in subsequent `FilePart` commands.
 *
 * Implements {@link IITerm2Payload} for use with the generic `iTerm2` function.
 * @see {@link ITerm2FileProps} for property details (omitting `content`).
 * @see {@link ITerm2FilePart} for sending file chunks.
 * @see {@link ITerm2FileEnd} for finalizing the transfer.
 */
export declare class ITerm2MultipartFileStart implements IITerm2Payload {
    private readonly properties;
    /**
     * Constructs an `ITerm2MultipartFileStart` payload object.
     * @param properties Properties for the multipart file (e.g., `name`, `size`). Content is not part of this command.
     * The `name` property within `props` should be pre-Base64 encoded by the caller if it might
     * contain special characters.
     */
    constructor(properties: Omit<ITerm2FileProperties, "content">);
    /**
     * Converts the file properties into the string payload suitable for the iTerm2 `MultipartFile=` command.
     * @returns The string payload (e.g., `"MultipartFile=name=...;size=..."`).
     */
    toString(): string;
}