from marshmallow import Schema, fields class EligibilityCheckSchema(Schema): transactionId = fields.Str(required=True) countryCode = fields.Str(required=True) customerId = fields.Str(required=True) accountId = fields.Str(required=True) msisdn = fields.Str(required=True) accountId = fields.Str(required=True) channel = fields.Str(required=True)