code: func (p *pathObject) SaveOutPredicates(tag string) *pathObject {
  	np := p.clonePath().SavePredicates(false, tag)
  	return p.new(np)
  }
docs: // SaveOutPredicates tags the list of predicates that are pointing out from a node.
  //
  // Example:
  // 	// javascript
  //	// bob has "<follows>" and "<status>" edges pointing outwards
  //	// returns {"id":"<bob>", "pred":"<follows>"}
  //	g.V("<bob>").SaveInPredicates("pred").All()