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chore: Remove old way of flagging features as experimental (#3005)
* remove straggler references Signed-off-by: Danny Chiao <[email protected]> * remove straggler references Signed-off-by: Danny Chiao <[email protected]> * fix Signed-off-by: Danny Chiao <[email protected]> * rebase Signed-off-by: Danny Chiao <[email protected]> * add lambda doc to feature server README Signed-off-by: Danny Chiao <[email protected]>
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‎docs/reference/alpha-on-demand-feature-view.md‎

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**Warning**: This is an _experimental_ feature. It's intended for early testing and feedback, and could change without warnings in future releases.
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{% hint style="info" %}
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To enable this feature, run **`feast alpha enable on_demand_transforms`**
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{% endhint %}
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## Overview
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On demand feature views allows users to use existing features and request time data \(features only available at request time\) to transform and create new features. Users define python transformation logic which is executed in both historical retrieval and online retrieval paths.

‎docs/reference/feature-servers/README.md‎

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Feast users can choose to retrieve features from a feature server, as opposed to through the Python SDK.
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{% page-ref page="python-feature-server.md" %}
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{% content-ref url="python-feature-server.md" %}
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[python-feature-server.md](python-feature-server.md)
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{% endcontent-ref %}
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{% content-ref url="go-feature-server.md" %}
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[go-feature-server.md](go-feature-server.md)
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{% endcontent-ref %}
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{% content-ref url="alpha-aws-lambda-feature-server.md" %}
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[alpha-aws-lambda-feature-server.md](alpha-aws-lambda-feature-server.md)
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{% endcontent-ref %}

‎docs/reference/alpha-aws-lambda-feature-server.md‎ renamed to ‎docs/reference/feature-servers/alpha-aws-lambda-feature-server.md‎

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**Warning**: This is an _experimental_ feature. It's intended for early testing and feedback, and could change without warnings in future releases.
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{% hint style="info" %}
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To enable this feature, run **`feast alpha enable aws_lambda_feature_server`**
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{% endhint %}
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## Overview
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The AWS Lambda feature server is an HTTP endpoint that serves features with JSON I/O, deployed as a Docker image through AWS Lambda and AWS API Gateway. This enables users to get features from Feast using any programming language that can make HTTP requests. A [local feature server](feature-servers/python-feature-server.md) is also available. A remote feature server on GCP Cloud Run is currently being developed.
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The AWS Lambda feature server is only available to projects using the `AwsProvider` with registries on S3. It is disabled by default. To enable it, `feature_store.yaml` must be modified; specifically, the `enable` flag must be on and an `execution_role_name` must be specified. For example, after running `feast init -t aws`, changing the registry to be on S3, and enabling the feature server, the contents of `feature_store.yaml` should look similar to the following:
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```text
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```
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project: dev
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registry: s3://feast/registries/dev
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provider: aws
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database: feast
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s3_staging_location: s3://feast/redshift/tests/staging_location
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iam_role: arn:aws:iam::{aws_account}:role/redshift_s3_access_role
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flags:
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alpha_features: true
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aws_lambda_feature_server: true
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feature_server:
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enabled: True
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execution_role_name: arn:aws:iam::{aws_account}:role/lambda_execution_role
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Feast requires the following permissions in order to deploy and teardown AWS Lambda feature server:
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| Permissions | Resources |
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| ----------------------------------------------------------------------------------------------------------------------------------------------------- | ------------------------------------------------- |
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| <p>lambda:CreateFunction</p><p>lambda:GetFunction</p><p>lambda:DeleteFunction</p><p>lambda:AddPermission</p><p>lambda:UpdateFunctionConfiguration</p> | arn:aws:lambda:\<region>:\<account_id>:function:feast-\* |
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| <p>ecr:CreateRepository</p><p>ecr:DescribeRepositories</p><p>ecr:DeleteRepository</p><p>ecr:PutImage</p><p>ecr:DescribeImages</p><p>ecr:BatchDeleteImage</p><p>ecr:CompleteLayerUpload</p><p>ecr:UploadLayerPart</p><p>ecr:InitiateLayerUpload</p><p>ecr:BatchCheckLayerAvailability</p><p>ecr:GetDownloadUrlForLayer</p><p>ecr:GetRepositoryPolicy</p><p>ecr:SetRepositoryPolicy</p><p>ecr:GetAuthorizationToken</p> | \* |
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| <p>iam:PassRole</p> | arn:aws:iam::\<account_id>:role/<lambda-execution-role-name> |
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| <p>apigateway:*</p> | <p>arn:aws:apigateway:*::/apis/*/routes/*/routeresponses</p><p>arn:aws:apigateway:*::/apis/*/routes/*/routeresponses/*</p><p>arn:aws:apigateway:*::/apis/*/routes/*</p><p>arn:aws:apigateway:*::/apis/*/routes</p><p>arn:aws:apigateway:*::/apis/*/integrations</p><p>arn:aws:apigateway:*::/apis/*/stages/*/routesettings/*</p><p>arn:aws:apigateway:*::/apis/*</p><p>arn:aws:apigateway:*::/apis</p> |
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| Permissions | Resources |
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| --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ |
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| <p>lambda:CreateFunction</p><p>lambda:GetFunction</p><p>lambda:DeleteFunction</p><p>lambda:AddPermission</p><p>lambda:UpdateFunctionConfiguration</p> | arn:aws:lambda:\<region>:\<account_id>:function:feast-\* |
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| <p>ecr:CreateRepository</p><p>ecr:DescribeRepositories</p><p>ecr:DeleteRepository</p><p>ecr:PutImage</p><p>ecr:DescribeImages</p><p>ecr:BatchDeleteImage</p><p>ecr:CompleteLayerUpload</p><p>ecr:UploadLayerPart</p><p>ecr:InitiateLayerUpload</p><p>ecr:BatchCheckLayerAvailability</p><p>ecr:GetDownloadUrlForLayer</p><p>ecr:GetRepositoryPolicy</p><p>ecr:SetRepositoryPolicy</p><p>ecr:GetAuthorizationToken</p> | \* |
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| <p>iam:PassRole</p> | arn:aws:iam::\<account_id>:role/<lambda-execution-role-name> |
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| <p>apigateway:*</p> | <p>arn:aws:apigateway:*::/apis/*/routes/*/routeresponses</p><p>arn:aws:apigateway:*::/apis/*/routes/*/routeresponses/*</p><p>arn:aws:apigateway:*::/apis/*/routes/*</p><p>arn:aws:apigateway:*::/apis/*/routes</p><p>arn:aws:apigateway:*::/apis/*/integrations</p><p>arn:aws:apigateway:*::/apis/*/stages/*/routesettings/*</p><p>arn:aws:apigateway:*::/apis/*</p><p>arn:aws:apigateway:*::/apis</p> |
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The following inline policy can be used to grant Feast the necessary permissions:
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‎examples/java-demo/README.md‎

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connection_string: localhost:6379,password=[YOUR PASSWORD]
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offline_store:
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type: file
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flags:
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alpha_features: true
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on_demand_transforms: true
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```
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4. Run `feast apply` to apply your local features to the remote registry
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5. Materialize features to the online store:

‎examples/java-demo/feature_repo/feature_store.yaml‎

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connection_string: localhost:6379,password=[YOUR PASSWORD]
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offline_store:
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type: file
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flags:
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alpha_features: true
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on_demand_transforms: true

‎infra/charts/feast/charts/transformation-service/config/feature_store.yaml‎

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path: {{ .Values.global.registry.path }}
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cache_ttl_seconds: {{ .Values.global.registry.cache_ttl_seconds }}
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provider: local
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project: {{ .Values.global.project }}
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flags:
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on_demand_transforms: true
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alpha_features: true
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project: {{ .Values.global.project }}

‎java/serving/src/test/resources/docker-compose/feast10/feature_store.yaml‎

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type: redis
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connection_string: "redis:6379,password=testpw"
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offline_store: {}
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flags:
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alpha_features: true
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on_demand_transforms: true

‎sdk/python/docs/source/feast.rst‎

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:undoc-members:
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:show-inheritance:
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feast.flags module
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------------------
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.. automodule:: feast.flags
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:members:
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:undoc-members:
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:show-inheritance:
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feast.flags\_helper module
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--------------------------
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‎sdk/python/feast/cli.py‎

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from dateutil import parser
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from pygments import formatters, highlight, lexers
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from feast import flags, flags_helper, utils
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from feast import utils
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from feast.constants import DEFAULT_FEATURE_TRANSFORMATION_SERVER_PORT
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from feast.errors import FeastObjectNotFoundException, FeastProviderLoginError
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from feast.feature_store import FeatureStore
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@cli.group(name="alpha")
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def alpha_cmd():
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"""
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Access alpha features
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"""
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pass
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@alpha_cmd.command("list")
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@click.pass_context
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def list_alpha_features(ctx: click.Context):
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"""
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Lists all alpha features
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"""
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repo = ctx.obj["CHDIR"]
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cli_check_repo(repo)
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repo_path = str(repo)
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store = FeatureStore(repo_path=repo_path)
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flags_to_show = flags.FLAG_NAMES.copy()
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flags_to_show.remove(flags.FLAG_ALPHA_FEATURES_NAME)
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print("Alpha features:")
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for flag in flags_to_show:
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enabled_string = (
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"enabled"
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if flags_helper.feature_flag_enabled(store.config, flag)
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else "disabled"
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)
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print(f"{flag}: {enabled_string}")
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@alpha_cmd.command("enable-all")
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@click.pass_context
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def enable_alpha_features(ctx: click.Context):
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"""
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Enables all alpha features
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"""
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repo = ctx.obj["CHDIR"]
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cli_check_repo(repo)
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store = FeatureStore(repo_path=repo_path)
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if store.config.flags is None:
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store.config.flags = {}
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for flag_name in flags.FLAG_NAMES:
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store.config.flags[flag_name] = True
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store.config.write_to_path(Path(repo_path))
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@alpha_cmd.command("enable")
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@click.argument("name", type=click.STRING)
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def enable_alpha_feature(ctx: click.Context, name: str):
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"""
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Enables an alpha feature
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"""
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if name not in flags.FLAG_NAMES:
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raise ValueError(f"Flag name, {name}, not valid.")
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cli_check_repo(repo)
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store = FeatureStore(repo_path=repo_path)
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store.config.flags[flags.FLAG_ALPHA_FEATURES_NAME] = True
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store.config.write_to_path(Path(repo_path))
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@alpha_cmd.command("disable")
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def disable_alpha_feature(ctx: click.Context, name: str):
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store = FeatureStore(repo_path=repo_path)
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if store.config.flags is None or name not in store.config.flags:
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return
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def disable_alpha_features(ctx: click.Context):
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"--feature-service", "-f", help="Specify a feature service name",

‎sdk/python/feast/errors.py‎

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class ExperimentalFeatureNotEnabled(Exception):
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def __init__(self, feature_flag_name: str):
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super().__init__(
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f"You are attempting to use an experimental feature that is not enabled. Please run "
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f"`feast alpha enable {feature_flag_name}` "
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)
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class RepoConfigPathDoesNotExist(Exception):
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def __init__(self):
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super().__init__("The repo_path attribute does not exist for the repo_config.")

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