code: function fetch(point, octree, octant) {
  
  	const children = octant.children;
  
  	let result = null;
  
  	let i, l;
  	let points;
  
  	if(octant.contains(point, octree.bias)) {
  
  		if(children !== null) {
  
  			for(i = 0, l = children.length; result === null && i < l; ++i) {
  
  				result = fetch(point, octree, children[i]);
  
  			}
  
  		} else if(octant.points !== null) {
  
  			points = octant.points;
  
  			for(i = 0, l = points.length; result === null && i < l; ++i) {
  
  				if(point.equals(points[i])) {
  
  					result = octant.data[i];
  
  				}
  
  			}
  
  		}
  
  	}
  
  	return result;
  
  }
docs: Recursively finds a point in the octree and fetches the associated data.
  
  @private
  @param {Vector3} point - A point.
  @param {Octree} octree - The octree.
  @param {Octant} octant - The current octant octant.
  @return {Object} The data entry that is associated with the given point or null if it doesn't exist.