code: function () {
  
  			var connectionMap = new Map();
  
  			if ( 'Connections' in fbxTree ) {
  
  				var rawConnections = fbxTree.Connections.connections;
  
  				rawConnections.forEach( function ( rawConnection ) {
  
  					var fromID = rawConnection[ 0 ];
  					var toID = rawConnection[ 1 ];
  					var relationship = rawConnection[ 2 ];
  
  					if ( ! connectionMap.has( fromID ) ) {
  
  						connectionMap.set( fromID, {
  							parents: [],
  							children: []
  						} );
  
  					}
  
  					var parentRelationship = { ID: toID, relationship: relationship };
  					connectionMap.get( fromID ).parents.push( parentRelationship );
  
  					if ( ! connectionMap.has( toID ) ) {
  
  						connectionMap.set( toID, {
  							parents: [],
  							children: []
  						} );
  
  					}
  
  					var childRelationship = { ID: fromID, relationship: relationship };
  					connectionMap.get( toID ).children.push( childRelationship );
  
  				} );
  
  			}
  
  			return connectionMap;
  
  		}
docs: Parses FBXTree.Connections which holds parent-child connections between objects (e.g. material -> texture, model->geometry ) and details the connection type