gistfile1.txt

  
  const signinAnonymously = () => {
    return firebase.auth().signInAnonymously()
      .then(response => {
        setUser(response.user);
        return response.user;
      });
  };
  
  etc...
  
  return {
    user,
    signup,
    signin,
    signinAnonymously,
    signinWithProvider,
    signout,
    sendPasswordResetEmail,
    confirmPasswordReset
  };