from otree.api import *
c = cu

doc = ''
class C(BaseConstants):
    NAME_IN_URL = 'intro'
    PLAYERS_PER_GROUP = None
    NUM_ROUNDS = 1
class Subsession(BaseSubsession):
    pass
def creating_session(subsession: Subsession):
    for player in subsession.get_players():
            if player.id_in_subsession % 2 == 1:
                player.participant.vars['group'] = 'Group 1'
            else:
                player.participant.vars['group'] = 'Group 2'
class Group(BaseGroup):
    pass
class Player(BasePlayer):
    consent_given = models.BooleanField()
class MyPage(Page):
    form_model = 'player'
    form_fields = ['consent_given']
page_sequence = [MyPage]