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# Copyright (c) Meta Platforms, Inc. and affiliates.
# All rights reserved.
#
# This source code is licensed under the BSD-style license found in the
# LICENSE file in the root directory of this source tree.
"""
Data models for the Echo Environment.
The Echo environment is a simple test environment that echoes back messages.
"""
from pydantic import Field
# Support both in-repo and standalone imports
try:
# In-repo imports (when running from OpenEnv repository)
from openenv.core.env_server.types import Action, Observation
except ImportError:
# Standalone imports (when environment is standalone with openenv from pip)
from openenv.core.env_server.types import Action, Observation
class EchoAction(Action):
"""Action for the Echo environment - just a message to echo."""
message: str = Field(..., min_length=1, description="Message to echo back")
class EchoObservation(Observation):
"""Observation from the Echo environment - the echoed message."""
echoed_message: str = Field(..., description="The echoed message from the environment")
message_length: int = Field(default=0, ge=0, description="Length of the echoed message") |