var result = Tree.entryCmp(e1, e2);

Tree.lookup(repo, id, callback).then(function(tree) {
  // Use tree
});

Tree.lookupPrefix(repo, id, len).then(function(tree) {
  // Use tree
});

var treeEntry = tree._entryByIndex(idx);

var treeEntry = tree._entryByName(filename);

var treebuilder = tree.builder();

tree.createUpdated(repo, nupdates, updates).then(function(oid) {
  // Use oid
});

tree.diff(tree, callback).then(function(diffList) {
  // Use diffList
});

tree.diffWithOptions(tree, options, callback).then(function(diffList) {
  // Use diffList
});

tree.dup().then(function(tree) {
  // Use tree
});

var arrayTreeEntry = tree.entries();

var treeEntry = tree.entryById(id);

var treeEntry = tree.entryByIndex(i);

var treeEntry = tree.entryByName(name);

tree.entryByPath(path).then(function(treeEntry) {
  // Use treeEntry
});

var result = tree.entryCount();

tree.getEntry(filePath).then(function(treeEntry) {
  // Use treeEntry
});

var oid = tree.id();

var repository = tree.owner();

var string = tree.path();

var eventEmitter = tree.walk([blobsOnly);

eventEmitter.on('entry', function(tree) {
  // Use tree
});

eventEmitter.on('end', function(trees) {
  // Use trees
});

eventEmitter.on('error', function(error) {
  // Use error
});