def _validate_next_step_params()

in src/stepfunctions/steps/states.py [0:0]


    def _validate_next_step_params(self, params, step_output):
        for k, v in params.items():
            if isinstance(v, StepInput):
                if v is not step_output and not step_output.contains(v):
                    return False, k
            elif isinstance(v, dict):
                valid, invalid_param_name = self._validate_next_step_params(v, step_output)
                if not valid:
                    return valid, invalid_param_name
        return True, None