text: from flask_wtf import FlaskForm, RecaptchaField
  from wtforms import StringField, TextAreaField
  from wtforms.validators import DataRequired, Length
  
  class SubmitForm(FlaskForm):
      username = StringField('Username', validators=[DataRequired(), Length(max=20)])
      message = TextAreaField('Message', validators=[DataRequired(), Length(max=100)])
      recaptcha = RecaptchaField()
  