net/src/main/java/com/stanfy/enroscar/rest/request/net/multipart/Part.java
public void send(final OutputStream out) throws IOException {
    if (DEBUG) { Log.v(TAG, "enter send(OutputStream out)"); }
    sendStart(out);
    sendDispositionHeader(out);
    sendContentTypeHeader(out);
    sendTransferEncodingHeader(out);
    sendEndOfHeader(out);
    sendData(out);
    sendEnd(out);
  }
public void send(final OutputStream out) throws IOException {
    if (DEBUG) { Log.v(TAG, "enter send(OutputStream out)"); }
    sendStart(out);
    sendDispositionHeader(out);
    sendContentTypeHeader(out);
    sendTransferEncodingHeader(out);
    sendEndOfHeader(out);
    sendData(out);
    sendEnd(out);
  }
Write all the data to the output stream.
If you override this method make sure to override
#length() as well

@param out The output stream
@throws IOException If an IO problem occurs.