feat: add ModelEvaluation support (#1167)

README.rst

@@ -283,6 +283,47 @@ Please visit `Importing models to Vertex AI`_ for a detailed overview:
 
 .. _Importing models to Vertex AI: https://cloud.google.com/vertex-ai/docs/general/import-model
 
+Model Evaluation
+----------------
+
+The Vertex AI SDK for Python currently supports getting model evaluation metrics for all AutoML models.
+
+To list all model evaluations for a model:
+
+.. code-block:: Python
+
+  model = aiplatform.Model('/projects/my-project/locations/us-central1/models/{MODEL_ID}')
+
+  evaluations = model.list_model_evaluations()
+  
+
+To get the model evaluation resource for a given model:
+
+.. code-block:: Python
+
+  model = aiplatform.Model('/projects/my-project/locations/us-central1/models/{MODEL_ID}')
+
+  # returns the first evaluation with no arguments, you can also pass the evaluation ID
+  evaluation = model.get_model_evaluation()
+
+  eval_metrics = evaluation.metrics
+
+
+You can also create a reference to your model evaluation directly by passing in the resource name of the model evaluation:
+
+.. code-block:: Python
+
+  evaluation = aiplatform.ModelEvaluation(
+    evaluation_name='/projects/my-project/locations/us-central1/models/{MODEL_ID}/evaluations/{EVALUATION_ID}')
+
+Alternatively, you can create a reference to your evaluation by passing in the model and evaluation IDs:
+
+.. code-block:: Python
+
+  evaluation = aiplatform.ModelEvaluation(
+    evaluation_name={EVALUATION_ID},
+    model_id={MODEL_ID})
+
 
 Batch Prediction
 ----------------

google/cloud/aiplatform/__init__.py

@@ -1,6 +1,6 @@
 # -*- coding: utf-8 -*-
 
-# Copyright 2020 Google LLC
+# Copyright 2022 Google LLC
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -41,6 +41,7 @@
 from google.cloud.aiplatform.metadata import metadata
 from google.cloud.aiplatform.models import Endpoint
 from google.cloud.aiplatform.models import Model
+from google.cloud.aiplatform.model_evaluation import ModelEvaluation
 from google.cloud.aiplatform.jobs import (
     BatchPredictionJob,
     CustomJob,
@@ -107,6 +108,7 @@
     "ImageDataset",
     "HyperparameterTuningJob",
     "Model",
+    "ModelEvaluation",
     "PipelineJob",
     "TabularDataset",
     "Tensorboard",

google/cloud/aiplatform/model_evaluation/__init__.py

@@ -0,0 +1,20 @@
+# -*- coding: utf-8 -*-
+
+# Copyright 2022 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+from google.cloud.aiplatform.model_evaluation.model_evaluation import ModelEvaluation
+
+__all__ = ("ModelEvaluation",)

google/cloud/aiplatform/model_evaluation/model_evaluation.py

@@ -0,0 +1,93 @@
+# -*- coding: utf-8 -*-
+
+# Copyright 2022 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+from google.auth import credentials as auth_credentials
+
+from google.cloud.aiplatform import base
+from google.cloud.aiplatform import utils
+from google.cloud.aiplatform import models
+from google.protobuf import struct_pb2
+
+from typing import Optional
+
+
+class ModelEvaluation(base.VertexAiResourceNounWithFutureManager):
+
+    client_class = utils.ModelClientWithOverride
+    _resource_noun = "evaluations"
+    _delete_method = None
+    _getter_method = "get_model_evaluation"
+    _list_method = "list_model_evaluations"
+    _parse_resource_name_method = "parse_model_evaluation_path"
+    _format_resource_name_method = "model_evaluation_path"
+
+    @property
+    def metrics(self) -> Optional[struct_pb2.Value]:
+        """Gets the evaluation metrics from the Model Evaluation.
+        Returns:
+            A dict with model metrics created from the Model Evaluation or
+            None if the metrics for this evaluation are empty.
+        """
+        return self._gca_resource.metrics
+
+    def __init__(
+        self,
+        evaluation_name: str,
+        model_id: Optional[str] = None,
+        project: Optional[str] = None,
+        location: Optional[str] = None,
+        credentials: Optional[auth_credentials.Credentials] = None,
+    ):
+        """Retrieves the ModelEvaluation resource and instantiates its representation.
+
+        Args:
+            evaluation_name (str):
+                Required. A fully-qualified model evaluation resource name or evaluation ID.
+                Example: "projects/123/locations/us-central1/models/456/evaluations/789" or
+                "789". If passing only the evaluation ID, model_id must be provided.
+            model_id (str):
+                Optional. The ID of the model to retrieve this evaluation from. If passing
+                only the evaluation ID as evaluation_name, model_id must be provided.
+            project (str):
+                Optional project to retrieve model evaluation from. If not set, project
+                set in aiplatform.init will be used.
+            location (str):
+                Optional location to retrieve model evaluation from. If not set, location
+                set in aiplatform.init will be used.
+            credentials: Optional[auth_credentials.Credentials]=None,
+                Custom credentials to use to retrieve this model evaluation. If not set,
+                credentials set in aiplatform.init will be used.
+        """
+
+        super().__init__(
+            project=project,
+            location=location,
+            credentials=credentials,
+            resource_name=evaluation_name,
+        )
+
+        self._gca_resource = self._get_gca_resource(
+            resource_name=evaluation_name,
+            parent_resource_name_fields={models.Model._resource_noun: model_id}
+            if model_id
+            else model_id,
+        )
+
+    def delete(self):
+        raise NotImplementedError(
+            "Deleting a model evaluation has not been implemented yet."
+        )

google/cloud/aiplatform/models.py

@@ -33,6 +33,7 @@
 from google.cloud.aiplatform import models
 from google.cloud.aiplatform import utils
 from google.cloud.aiplatform.utils import gcs_utils
+from google.cloud.aiplatform import model_evaluation
 
 from google.cloud.aiplatform.compat.services import endpoint_service_client
 
@@ -3210,3 +3211,79 @@ def upload_tensorflow_saved_model(
             sync=sync,
             upload_request_timeout=upload_request_timeout,
         )
+
+    def list_model_evaluations(
+        self,
+    ) -> List["model_evaluation.ModelEvaluation"]:
+        """List all Model Evaluation resources associated with this model.
+
+        Example Usage:
+
+        my_model = Model(
+            model_name="projects/123/locations/us-central1/models/456"
+        )
+
+        my_evaluations = my_model.list_model_evaluations()
+
+        Returns:
+            List[model_evaluation.ModelEvaluation]: List of ModelEvaluation resources
+            for the model.
+        """
+
+        self.wait()
+
+        return model_evaluation.ModelEvaluation._list(
+            parent=self.resource_name,
+            credentials=self.credentials,
+        )
+
+    def get_model_evaluation(
+        self,
+        evaluation_id: Optional[str] = None,
+    ) -> Optional[model_evaluation.ModelEvaluation]:
+        """Returns a ModelEvaluation resource and instantiates its representation.
+        If no evaluation_id is passed, it will return the first evaluation associated
+        with this model.
+
+        Example usage:
+
+            my_model = Model(
+                model_name="projects/123/locations/us-central1/models/456"
+            )
+
+            my_evaluation = my_model.get_model_evaluation(
+                evaluation_id="789"
+            )
+
+            # If no arguments are passed, this returns the first evaluation for the model
+            my_evaluation = my_model.get_model_evaluation()
+
+        Args:
+            evaluation_id (str):
+                Optional. The ID of the model evaluation to retrieve.
+        Returns:
+            model_evaluation.ModelEvaluation: Instantiated representation of the
+            ModelEvaluation resource.
+        """
+
+        evaluations = self.list_model_evaluations()
+
+        if not evaluation_id:
+            if len(evaluations) > 1:
+                _LOGGER.warning(
+                    f"Your model has more than one model evaluation, this is returning only one evaluation resource: {evaluations[0].resource_name}"
+                )
+            return evaluations[0] if evaluations else evaluations
+        else:
+            resource_uri_parts = self._parse_resource_name(self.resource_name)
+            evaluation_resource_name = (
+                model_evaluation.ModelEvaluation._format_resource_name(
+                    **resource_uri_parts,
+                    evaluation=evaluation_id,
+                )
+            )
+
+            return model_evaluation.ModelEvaluation(
+                evaluation_name=evaluation_resource_name,
+                credentials=self.credentials,
+            )