var revwalk = Revwalk.create(repo);

revwalk.commitWalk(max_count).then(function(stdVectorGitCommit) {
  // Use stdVectorGitCommit
});

revwalk.fastWalk(max_count).then(function(stdVectorGitOid) {
  // Use stdVectorGitOid
});

revwalk.fileHistoryWalk(filePath, max_count).then(function(arrayHistoryEntry) {
  // Use arrayHistoryEntry
});

revwalk.getCommits(count).then(function(arrayCommit) {
  // Use arrayCommit
});

revwalk.getCommitsUntil(checkFn).then(function(array) {
  // Use array
});

var result = revwalk.hide(commit_id);

var result = revwalk.hideGlob(glob);

var result = revwalk.hideHead();

var result = revwalk.hideRef(refname);

revwalk.next().then(function(oid) {
  // Use oid
});

var result = revwalk.push(id);

var result = revwalk.pushGlob(glob);

var result = revwalk.pushHead();

var result = revwalk.pushRange(range);

var result = revwalk.pushRef(refname);

var repository = revwalk.repository();

revwalk.reset();

revwalk.simplifyFirstParent();

revwalk.sorting(sort);

revwalk.walk(oid, callback);