@Nullable
    default Integer defaultHttp1MaxChunkSize() {
        return null;
    }
Returns the default maximum length of each chunk in an HTTP/1 request or response content.
The content or a chunk longer than this value will be split into smaller chunks
so that their lengths never exceed it.
Note that this flag has no effect if a user specified the value explicitly via
{@link ServerBuilder#http1MaxChunkSize(int)} or
{@link ClientFactoryBuilder#http1MaxChunkSize(int)}.

<p>The default value of this flag is {@value DefaultFlagsProvider#DEFAULT_HTTP1_MAX_CHUNK_SIZE}.
Specify the {@code -Dcom.linecorp.armeria.defaultHttp1MaxChunkSize=<integer>} JVM option
to override the default value.
core/src/main/java/com/linecorp/armeria/common/FlagsProvider.java