public Builder setSocketTimeout(final Timeout soTimeout) {
            this.socketTimeout = soTimeout;
            return this;
        }
Determines the default socket timeout value for I/O operations.
<p>
Default: {@code null} (undefined)
</p>

@return this instance.
httpclient5/src/main/java/org/apache/hc/client5/http/config/ConnectionConfig.java