(self, trial_id: int, param_name: str)
Read the parameter of a trial.

        Args:
            trial_id:
                ID of the trial.
            param_name:
                Name of the parameter.

        Returns:
            Internal representation of the parameter.

        Raises:
            :exc:`KeyError`:
                If no trial with the matching ``trial_id`` exists.
                If no such parameter exists.
Read the parameter of a trial.
Read the parameter of a trial .
def get_trial_param(self, trial_id: int, param_name: str) -> float:
        """Read the parameter of a trial.

        Args:
            trial_id:
                ID of the trial.
            param_name:
                Name of the parameter.

        Returns:
            Internal representation of the parameter.

        Raises:
            :exc:`KeyError`:
                If no trial with the matching ``trial_id`` exists.
                If no such parameter exists.
        """
        raise NotImplementedError
def get_trial_param ( self , trial_id : int , param_name : str ) -> float : raise NotImplementedError