@spec create_customer_session(PolarExpress.Client.t(), map(), keyword()) ::
  {:ok, PolarExpress.Schemas.CustomerSession.t()}
  | {:error, PolarExpress.Error.t()}

Create Customer Session

Create a customer session.

For organizations with member_model_enabled, this will automatically create a member session for the owner member of the customer.

Scopes: customer_sessions:write

See PolarExpress.Params.CustomerSessionsCreateCustomerSessionParams for parameter details.