/** Class implementing the tree view. */
class Tree {
    /**
     * Creates a Tree Object
     */
    constructor() {
    }

    /**
     * Creates a node/edge structure and renders a tree layout based on
     * the input data
     *
     * @param treeData an array of objects that contain parent/child
     * information.
     */
  createTree(treeData) {

    // ******* TODO: PART VI *******

    // Create a tree and give it a size() of 800 by 300.

    // Create a root for the tree using d3.stratify();

    // Add nodes and links to the tree.

  };

  /**
   * Updates the highlighting in the tree based on the selected team.
   * Highlights the appropriate team nodes and labels.
   *
   * @param row a string specifying which team was selected in the table.
   */
  updateTree(row) {
    // ******* TODO: PART VII *******

  }

  /**
   * Removes all highlighting from the tree.
   */
  clearTree() {
    // ******* TODO: PART VII *******

    // You only need two lines of code for this! No loops!
  }
}