Adds a part to the payload of the given content type from the specified file.
The name assigned to t
Writes the parts already added to the payload to the specified OutputStream.
Adds a part of the specified content type, name, and String content to the
Returns the parts from the outbound payload.
Count of attached parts
Returns the content type of the payload, determined by whether there are
multiple parts and, if not,
Resets Payload dirty flag, indicating whether Payload was modified.
Adds a part to the payload that represents a request to remove the specified
file, presumably previo
Adds a part to the payload to request that the specified file be replaced. If
the fileURI translates