'Initialize the instance.
@param request: See L{StaticProducer}.
@param fileObject: See L{StaticProducer}.
@param offset: The offset into the file of the chunk to be written.
@param size: The size of the chunk to write.'

def __init__(self, request, fileObject, offset, size):

    StaticProducer.__init__(self, request, fileObject)
    self.offset = offset
    self.size = size
