from otree.api import *
c = cu

doc = ''
class C(BaseConstants):
    NAME_IN_URL = 'ID_number'
    PLAYERS_PER_GROUP = None
    NUM_ROUNDS = 1
class Subsession(BaseSubsession):
    pass
class Group(BaseGroup):
    pass
class Player(BasePlayer):
    ID_number = models.StringField(blank=True, label='Please write here the number that was given to you by the experimenter.')
class ID_number(Page):
    form_model = 'player'
    form_fields = ['ID_number']
page_sequence = [ID_number]