from otree.api import (
    models, widgets, BaseConstants, BaseSubsession, BaseGroup, BasePlayer,
    Currency as c, currency_range, Page, WaitPage
)
cu = c

doc = ''
class Constants(BaseConstants):
    name_in_url = 'pgg'
    players_per_group = 3
    num_rounds = 1
    multiplier = 2
    endowment = c(1000)
class Subsession(BaseSubsession):
    pass
class Group(BaseGroup):
    pass
class Player(BasePlayer):
    contribution = models.CurrencyField(label='"How much will you contribute?"', max=Constants.endowment, min=0)