#

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# contributor license agreements. See the NOTICE file distributed with

# this work for additional information regarding copyright ownership.

# The ASF licenses this file to You 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

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# Unless required by applicable law or agreed to in writing, software

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from apache_beam.options import pipeline_options

class YamlOptions(pipeline_options.PipelineOptions):

@classmethod

def _add_argparse_args(cls, parser):

parser.add_argument(

'--yaml_experimental_features',

dest='yaml_experimental_features',

action='append',

default=[],

help=('Enable yaml features ahead of them being declared stable.'))

@classmethod

def check_enabled(cls, pipeline, feature, description=None):

if feature not in pipeline._options.view_as(cls).yaml_experimental_features:

raise ValueError(

f'{description or feature} unsupported because '

f'{feature} is not set in --yaml_experimental_features option.')