Source code for tfrddlsim.policy.abstract_policy
# This file is part of tf-rddlsim.
# tf-rddlsim is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
# tf-rddlsim is distributed in the hope that it will be useful,
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
# You should have received a copy of the GNU General Public License
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import abc
import tensorflow as tf
from typing import Sequence
[docs]class Policy(metaclass=abc.ABCMeta):
'''Abstract base class for representing Policy functions.'''
[docs] @abc.abstractmethod
def __call__(self,
state: Sequence[tf.Tensor],
timestep: tf.Tensor) -> Sequence[tf.Tensor]:
'''Returns action fluents for the current `state` and `timestep`.
Args:
state (Sequence[tf.Tensor]): The current state fluents.
timestep (tf.Tensor): The current timestep.
Returns:
Sequence[tf.Tensor]: A tuple of action fluents.
'''
raise NotImplementedError