text: # -*- coding: utf-8 -*- #
  # Copyright 2019 Google LLC. All Rights Reserved.
  #
  # 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.
  """ai-platform explain command."""
  
  from __future__ import absolute_import
  from __future__ import division
  from __future__ import unicode_literals
  
  from googlecloudsdk.api_lib.ml_engine import predict
  from googlecloudsdk.calliope import base
  from googlecloudsdk.command_lib.ml_engine import endpoint_util
  from googlecloudsdk.command_lib.ml_engine import flags
  from googlecloudsdk.command_lib.ml_engine import predict_utilities
  from googlecloudsdk.command_lib.ml_engine import region_util
  
  INPUT_INSTANCES_LIMIT = 100
  DETAILED_HELP = {
      'EXAMPLES':
          """\
          To get explanations for an AI Platform version model with the
          version 'version' and with the name 'model-name', run:
  
            $ {command} explain --model=model-name --version=version \
            --json-instances=instances.json
          """,
  }
  
  
  @base.ReleaseTracks(base.ReleaseTrack.ALPHA, base.ReleaseTrack.BETA)
  class Explain(base.Command):
    """Run AI Platform explanation.
  
       `{command}` sends an explain request to AI Platform for the given
       instances. This command will read up to 100 instances, though the service
       itself will accept instances up to the payload limit size (currently,
       1.5MB).
    """
  
    detailed_help = DETAILED_HELP
  
    @staticmethod
    def Args(parser):
      """Register flags for this command."""
      parser.add_argument('--model', required=True, help='Name of the model.')
      flags.GetRegionArg(include_global=True).AddToParser(parser)
      parser.add_argument(
          '--version',
          help="""\
  Model version to be used.
  
  If unspecified, the default version of the model will be used. To list model
  versions run
  
    $ {parent_command} versions list
  """)
      group = parser.add_mutually_exclusive_group(required=True)
      group.add_argument(
          '--json-request',
          help="""\
          Path to a local file containing the body of JSON request.
  
          An example of a JSON request:
  
              {
                "instances": [
                  {"x": [1, 2], "y": [3, 4]},
                  {"x": [-1, -2], "y": [-3, -4]}
                ]
              }
  
          This flag accepts "-" for stdin.
          """)
      group.add_argument(
          '--json-instances',
          help="""\
          Path to a local file from which instances are read.
          Instances are in JSON format; newline delimited.
  
          An example of the JSON instances file:
  
              {"images": [0.0, ..., 0.1], "key": 3}
              {"images": [0.0, ..., 0.1], "key": 2}
              ...
  
          This flag accepts "-" for stdin.
          """)
      group.add_argument(
          '--text-instances',
          help="""\
          Path to a local file from which instances are read.
          Instances are in UTF-8 encoded text format; newline delimited.
  
          An example of the text instances file:
  
              107,4.9,2.5,4.5,1.7
              100,5.7,2.8,4.1,1.3
              ...
  
          This flag accepts "-" for stdin.
          """)
  
    def Run(self, args):
      """This is what gets called when the user runs this command.
  
      Args:
        args: an argparse namespace. All the arguments that were provided to this
          command invocation.
  
      Returns:
        Some value that we want to have printed later.
      """
      instances = predict_utilities.ReadInstancesFromArgs(
          args.json_request,
          args.json_instances,
          args.text_instances,
          limit=INPUT_INSTANCES_LIMIT)
  
      region = region_util.GetRegion(args)
      with endpoint_util.MlEndpointOverrides(region=region):
        model_or_version_ref = predict_utilities.ParseModelOrVersionRef(
            args.model, args.version)
        results = predict.Explain(model_or_version_ref, instances)
  
      if not args.IsSpecified('format'):
        # default format is based on the response.
        args.format = predict_utilities.GetDefaultFormat(
            results.get('predictions'))
  
      return results
  