username_helper = """
MDTextField: 
    hint_text: "Enter username"
    helper_text: "or click on forgot username"
    helper_text_mode: "on_focus" # there are two modes on_focus and persistent.
    icon_right: "language-python"
    icon_right_color: app.theme_cls.primary_color
    pos_hint: {'center_x':0.5,'center_y':0.5}
    size_hint_x: None
    width: 300
"""
