How to use the ihatemoney.forms.MemberForm function in ihatemoney

def add_member():
    # FIXME manage form errors on the list_bills page
    form = MemberForm(g.project)
    if request.method == "POST":
        if form.validate():
            member = form.save(g.project, Person())
            db.session.commit()
            flash(_("%(member)s had been added", member=member.name))
            return redirect(url_for(".list_bills"))

    return render_template("add_member.html", form=form)

form = EditProjectForm(meta={"csrf": False})
        if form.validate() and current_app.config.get("ALLOW_PUBLIC_PROJECT_CREATION"):
            form.update(project)
            db.session.commit()
            return "UPDATED"
        return form.errors, 400


class ProjectStatsHandler(Resource):
    method_decorators = [need_auth]

    def get(self, project):
        return project.members_stats


class APIMemberForm(MemberForm):
    """ Member is not disablable via a Form.

    But we want Member.enabled to be togglable via the API.
    """

    activated = BooleanField(false_values=("false", "", "False"))

    def save(self, project, person):
        person.activated = self.activated.data
        return super(APIMemberForm, self).save(project, person)


class MembersHandler(Resource):
    method_decorators = [need_auth]

    def get(self, project):

def post(self, project):
        form = MemberForm(project, meta={"csrf": False})
        if form.validate():
            member = Person()
            form.save(project, member)
            db.session.commit()
            return member.id, 201
        return form.errors, 400

def edit_member(member_id):
    member = Person.query.get(member_id, g.project)
    if not member:
        raise NotFound()
    form = MemberForm(g.project, edit=True)

    if request.method == "POST" and form.validate():
        form.save(g.project, member)
        db.session.commit()
        flash(_("User '%(name)s' has been edited", name=member.name))
        return redirect(url_for(".list_bills"))

    form.fill(member)
    return render_template("edit_member.html", form=form, edit=True)

def list_bills():
    bill_form = get_billform_for(g.project)
    # set the last selected payer as default choice if exists
    if "last_selected_payer" in session:
        bill_form.payer.data = session["last_selected_payer"]
    # Preload the "owers" relationship for all bills
    bills = g.project.get_bills().options(orm.subqueryload(Bill.owers))

    return render_template(
        "list_bills.html",
        bills=bills,
        member_form=MemberForm(g.project),
        bill_form=bill_form,
        add_bill=request.values.get("add_bill", False),
        current_view="list_bills",
    )

def __init__(self, project, edit=False, *args, **kwargs):
        super(MemberForm, self).__init__(*args, **kwargs)
        self.project = project
        self.edit = edit