Beyond the methods documented below, this class inherits methods from the RDF::Query::Node and
RDF::Trine::Node::Blank classes.
"new ( [ $name ] )"
Returns a new Blank node object. If $name is supplied, it will be used as the blank node identifier.
Otherwise a time-based identifier will be generated and used.
"as_sparql"
Returns the SPARQL string for this node.
"as_hash"
Returns the query as a nested set of plain data structures (no objects).
"make_distinguished_variable"
Returns a new variable based on this blank node.