import os
from samplehc import SampleHealthcare

client = SampleHealthcare(
    api_key=os.environ.get("SAMPLEHC_API_KEY"),  # This is the default and can be omitted
)
response = client.v2.ledger.institutions.orders.retrieve_balance(
    order_id="orderId",
    institution_id="institutionId",
)
print(response.balance_usd_cents)

{
  "balanceUsdCents": 123
}