def METHOD_NAME(self):
    """
    Serve a GET request.
    """
    rg = self.parse_header_byte_range()
    if rg:
        f = self.send_head_range(rg[0], rg[1])
        if f:
            self.copyfile_range(f, self.wfile, rg[0], rg[1])
            f.close()
    else:
        f = self.send_head()
        if f:
            self.copyfile(f, self.wfile)
            f.close()