public default TraversalSource with(final String key) {
        return with(key, true);
    }
Provides a configuration to a traversal in the form of a key which is the same as {@code with(key, true)}. The
key of the configuration must be graph provider specific and therefore a configuration could be supplied that
is not known to be valid until execution.

@param key the key of the configuration to apply to a traversal
@return a new traversal source with the included configuration
@since 3.4.0
gremlin-core/src/main/java/org/apache/tinkerpop/gremlin/process/traversal/TraversalSource.java