Environment

I refer to the following environment class
class StockTradingEnv(gym.Env):
def __init__(
self,
config,
initial_account=1e6,
gamma=0.99,
turbulence_thresh=99,
min_stock_rate=0.1,
max_stock=1e2,
initial_capital=1e6,
buy_cost_pct=1e-3,
sell_cost_pct=1e-3,
reward_scaling=2**-11,
initial_stocks=None,
):
price_ary = config["price_array"]
tech_ary = config["tech_array"]
turbulence_ary = config["turbulence_array"]

where is this config file located? it seems that data is passed into this file and broken down onto price array, tech array and turbulence array before running through the rest of the environment. i would like to understand the procedure for this breakdown.