@NonNull
    public static String getLoggerType() {
        return getStringOptionValue(TTL_AGENT_LOGGER_KEY, Logger.STDERR);
    }
Get the TTL Agent Log type.
<p>
Same as {@code getStringOptionValue(TTL_AGENT_LOGGER_KEY, Logger.STDERR)}.

@see Logger
@see Logger#STDERR
@see Logger#STDOUT
@see TtlAgent
@see #getStringOptionValue(String, String)
@see #TTL_AGENT_LOGGER_KEY
ttl-agent/src/main/java/com/alibaba/ttl3/agent/TtlAgent.java