declare namespace javax {
    namespace servlet {
        interface ServletResponse {
            getCharacterEncoding(): string
            getContentType(): string
            getOutputStream(): javax.servlet.ServletOutputStream
            getWriter(): java.io.PrintWriter
            setCharacterEncoding(arg0: java.lang.String | string): void
            setContentLength(arg0: int): void
            setContentLengthLong(arg0: long): void
            setContentType(arg0: java.lang.String | string): void
            setBufferSize(arg0: int): void
            getBufferSize(): int
            flushBuffer(): void
            resetBuffer(): void
            isCommitted(): boolean
            reset(): void
            setLocale(arg0: java.util.Locale): void
            getLocale(): java.util.Locale
        }
    }
}