text: from flask_wtf import FlaskForm
  
  from wtforms.validators import DataRequired, Length
  from wtforms.fields import PasswordField, StringField
  from wtforms.fields.html5 import EmailField
  
  class LoginForm(FlaskForm):
      email = EmailField('Email Address', [DataRequired(), Length(3, 254)])
      password = PasswordField('Password', [DataRequired(), Length(3, 254)])
  
  class SignupForm(FlaskForm):
      name = StringField('Name', [DataRequired(), Length(3, 254)])
      email = EmailField('Email Address', [DataRequired(), Length(3, 254)])
      password = PasswordField('Password', [DataRequired(), Length(3, 254)])
  
  class PasswordChange(FlaskForm):
      password = PasswordField('Password', [DataRequired(), Length(3, 254)])
  
  class NameChange(FlaskForm):
      name = StringField('Name', [DataRequired(), Length(3, 254)])