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    "name": "Checkout flutter/packages.submodule update",
    "~followup_annotations": [
      "@@@STEP_NEST_LEVEL@1@@@"
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    "cmd": [],
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    "name": "Checkout flutter/flutter (2).git setup",
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      "@@@STEP_NEST_LEVEL@1@@@"
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    "name": "Checkout flutter/flutter (2).git fetch",
    "~followup_annotations": [
      "@@@STEP_NEST_LEVEL@1@@@"
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    "cmd": [
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      "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
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    "~followup_annotations": [
      "@@@STEP_NEST_LEVEL@1@@@"
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    "cmd": [
      "git",
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      "HEAD"
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          "name": "invocations/build:123",
          "update_token": "token"
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        "hostname": "rdbhost"
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    "name": "Checkout flutter/flutter (2).read revision",
    "~followup_annotations": [
      "@@@STEP_NEST_LEVEL@1@@@",
      "@@@STEP_TEXT@<br/>checked out 'deadbeef'<br/>@@@",
      "@@@SET_BUILD_PROPERTY@got_revision@\"deadbeef\"@@@"
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    "cmd": [
      "git",
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      "-d",
      "-x"
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        "hostname": "rdbhost"
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    "cmd": [
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          "update_token": "token"
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        "hostname": "rdbhost"
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    "name": "Checkout flutter/flutter (2).submodule sync",
    "~followup_annotations": [
      "@@@STEP_NEST_LEVEL@1@@@"
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    "cmd": [
      "git",
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        "hostname": "rdbhost"
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    "name": "Checkout flutter/flutter (2).submodule update",
    "~followup_annotations": [
      "@@@STEP_NEST_LEVEL@1@@@"
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    "cmd": [],
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        "hostname": "rdbhost"
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    "name": "Identify branches (4).git branch",
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    "cmd": [],
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    "name": "Identify branches (5).git rev-parse",
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        "hostname": "rdbhost"
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    "~followup_annotations": [
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    "cmd": [],
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        "hostname": "rdbhost"
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    "name": "Identify branches (6).git branch",
    "~followup_annotations": [
      "@@@STEP_NEST_LEVEL@1@@@"
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    "cmd": [
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        "hostname": "rdbhost"
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    "name": "git rev-parse"
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  {
    "cmd": [],
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  {
    "cmd": [
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        "name": "dart:ci.sandbox"
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      "resultdb": {
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          "update_token": "token"
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        "hostname": "rdbhost"
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    "name": "Identify branches (7).git branch",
    "~followup_annotations": [
      "@@@STEP_NEST_LEVEL@1@@@"
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  },
  {
    "cmd": [
      "vpython3",
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      "0o777",
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    "infra_step": true,
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        "hostname": "rdbhost"
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    "name": "ensure directory"
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  {
    "cmd": [],
    "name": "Checkout source code"
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    "cmd": [
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      "rmcontents",
      "[START_DIR]"
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    "env_suffixes": {
      "DEPOT_TOOLS_UPDATE": [
        "0"
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      "PATH": [
        "RECIPE_REPO[depot_tools]"
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    "infra_step": true,
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          "update_token": "token"
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        "hostname": "rdbhost"
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    "name": "Checkout source code.Clobber cache",
    "~followup_annotations": [
      "@@@STEP_NEST_LEVEL@1@@@"
    ]
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  {
    "cmd": [
      "vpython3",
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      "rmtree",
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    "env_suffixes": {
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      "PATH": [
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    "name": "Checkout source code.Clobber git cache",
    "~followup_annotations": [
      "@@@STEP_NEST_LEVEL@1@@@"
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  {
    "cmd": [
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    "name": "Checkout source code.Ensure checkout cache",
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      "@@@STEP_NEST_LEVEL@1@@@"
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      "--revision_mapping_file",
      "{\"got_buildroot_revision\": \"engine/src\", \"got_dart_revision\": \"engine/src/third_party/dart\", \"got_engine_revision\": \"engine/src/flutter\", \"got_flutter_revision\": \"flutter\", \"got_monorepo_revision\": \"monorepo\"}",
      "--git-cache-dir",
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      "--cleanup-dir",
      "[CLEANUP]/bot_update",
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      "--revision",
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      "GIT_BACKENDINFO": "1",
      "GIT_DAPPER_TRACE": "1",
      "GIT_HTTP_LOW_SPEED_LIMIT": "102400",
      "GIT_HTTP_LOW_SPEED_TIME": "1800",
      "GIT_SSH_COMMAND": "ssh -o SendEnv=GIT_DAPPER_TRACE -o SendEnv=GIT_BACKENDINFO",
      "GIT_TRACE2_EVENT": "[CLEANUP]/trace2-event",
      "GIT_TRACE_CURL": "[CLEANUP]/trace-curl",
      "GIT_TRACE_CURL_NO_DATA": "1",
      "GIT_TRACE_PACKET": "[CLEANUP]/trace-packet"
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        "0"
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    "name": "Checkout source code.bot_update",
    "~followup_annotations": [
      "@@@STEP_NEST_LEVEL@1@@@",
      "@@@STEP_TEXT@Some step text@@@",
      "@@@STEP_LOG_LINE@json.output@{@@@",
      "@@@STEP_LOG_LINE@json.output@  \"did_run\": true,@@@",
      "@@@STEP_LOG_LINE@json.output@  \"fixed_revisions\": {@@@",
      "@@@STEP_LOG_LINE@json.output@    \"monorepo\": \"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\"@@@",
      "@@@STEP_LOG_LINE@json.output@  },@@@",
      "@@@STEP_LOG_LINE@json.output@  \"manifest\": {@@@",
      "@@@STEP_LOG_LINE@json.output@    \"engine/src\": {@@@",
      "@@@STEP_LOG_LINE@json.output@      \"repository\": \"https://fake.org/engine/src.git\",@@@",
      "@@@STEP_LOG_LINE@json.output@      \"revision\": \"851705163d0a071411a2461348b2fa0f4365dd2b\"@@@",
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      "@@@STEP_LOG_LINE@json.output@    \"engine/src/flutter\": {@@@",
      "@@@STEP_LOG_LINE@json.output@      \"repository\": \"https://fake.org/engine/src/flutter.git\",@@@",
      "@@@STEP_LOG_LINE@json.output@      \"revision\": \"8d715353df333b3d997121c3d17cfe043f0a33ee\"@@@",
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      "@@@STEP_LOG_LINE@json.output@      \"repository\": \"https://fake.org/engine/src/third_party/dart.git\",@@@",
      "@@@STEP_LOG_LINE@json.output@      \"revision\": \"56b272d88fce292881d9d6a89d1a88b53f868a7f\"@@@",
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      "@@@STEP_LOG_LINE@json.output@      \"revision\": \"ff25d17873bba4bc564d8c7217280aa254ed4541\"@@@",
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      "@@@STEP_LOG_LINE@json.output@    \"got_flutter_revision\": \"ff25d17873bba4bc564d8c7217280aa254ed4541\",@@@",
      "@@@STEP_LOG_LINE@json.output@    \"got_flutter_revision_cp\": \"refs/heads/main@{#268536}\",@@@",
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      "@@@STEP_LOG_LINE@json.output@      \"engine/src/flutter\": {@@@",
      "@@@STEP_LOG_LINE@json.output@        \"git_checkout\": {@@@",
      "@@@STEP_LOG_LINE@json.output@          \"repo_url\": \"https://fake.org/engine/src/flutter.git\",@@@",
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      "@@@STEP_LOG_LINE@json.output@        \"git_checkout\": {@@@",
      "@@@STEP_LOG_LINE@json.output@          \"repo_url\": \"https://fake.org/engine/src/third_party/dart.git\",@@@",
      "@@@STEP_LOG_LINE@json.output@          \"revision\": \"56b272d88fce292881d9d6a89d1a88b53f868a7f\"@@@",
      "@@@STEP_LOG_LINE@json.output@        }@@@",
      "@@@STEP_LOG_LINE@json.output@      },@@@",
      "@@@STEP_LOG_LINE@json.output@      \"flutter\": {@@@",
      "@@@STEP_LOG_LINE@json.output@        \"git_checkout\": {@@@",
      "@@@STEP_LOG_LINE@json.output@          \"repo_url\": \"https://fake.org/flutter.git\",@@@",
      "@@@STEP_LOG_LINE@json.output@          \"revision\": \"ff25d17873bba4bc564d8c7217280aa254ed4541\"@@@",
      "@@@STEP_LOG_LINE@json.output@        }@@@",
      "@@@STEP_LOG_LINE@json.output@      },@@@",
      "@@@STEP_LOG_LINE@json.output@      \"monorepo\": {@@@",
      "@@@STEP_LOG_LINE@json.output@        \"git_checkout\": {@@@",
      "@@@STEP_LOG_LINE@json.output@          \"repo_url\": \"https://fake.org/monorepo.git\",@@@",
      "@@@STEP_LOG_LINE@json.output@          \"revision\": \"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\"@@@",
      "@@@STEP_LOG_LINE@json.output@        }@@@",
      "@@@STEP_LOG_LINE@json.output@      }@@@",
      "@@@STEP_LOG_LINE@json.output@    },@@@",
      "@@@STEP_LOG_LINE@json.output@    \"version\": 0@@@",
      "@@@STEP_LOG_LINE@json.output@  },@@@",
      "@@@STEP_LOG_LINE@json.output@  \"step_text\": \"Some step text\"@@@",
      "@@@STEP_LOG_LINE@json.output@}@@@",
      "@@@STEP_LOG_END@json.output@@@",
      "@@@SET_BUILD_PROPERTY@got_buildroot_revision@\"851705163d0a071411a2461348b2fa0f4365dd2b\"@@@",
      "@@@SET_BUILD_PROPERTY@got_buildroot_revision_cp@\"refs/heads/main@{#278358}\"@@@",
      "@@@SET_BUILD_PROPERTY@got_dart_revision@\"56b272d88fce292881d9d6a89d1a88b53f868a7f\"@@@",
      "@@@SET_BUILD_PROPERTY@got_dart_revision_cp@\"refs/heads/main@{#135384}\"@@@",
      "@@@SET_BUILD_PROPERTY@got_engine_revision@\"8d715353df333b3d997121c3d17cfe043f0a33ee\"@@@",
      "@@@SET_BUILD_PROPERTY@got_engine_revision_cp@\"refs/heads/main@{#14355}\"@@@",
      "@@@SET_BUILD_PROPERTY@got_flutter_revision@\"ff25d17873bba4bc564d8c7217280aa254ed4541\"@@@",
      "@@@SET_BUILD_PROPERTY@got_flutter_revision_cp@\"refs/heads/main@{#268536}\"@@@",
      "@@@SET_BUILD_PROPERTY@got_monorepo_revision@\"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\"@@@",
      "@@@SET_BUILD_PROPERTY@got_monorepo_revision_cp@\"refs/heads/main@{#255931}\"@@@",
      "@@@SET_BUILD_PROPERTY@got_revision@\"46cec4dbb087a7b43490e8c82b6899fa32937bd9\"@@@"
    ]
  },
  {
    "cmd": [
      "vpython3",
      "-u",
      "RECIPE_REPO[depot_tools]/gclient.py",
      "runhooks"
    ],
    "env": {
      "DEPOT_TOOLS_REPORT_BUILD": "dart/ci.sandbox/monorepo_builder/123"
    },
    "env_suffixes": {
      "DEPOT_TOOLS_UPDATE": [
        "0"
      ],
      "PATH": [
        "RECIPE_REPO[depot_tools]",
        "RECIPE_REPO[depot_tools]"
      ]
    },
    "luci_context": {
      "realm": {
        "name": "dart:ci.sandbox"
      },
      "resultdb": {
        "current_invocation": {
          "name": "invocations/build:123",
          "update_token": "token"
        },
        "hostname": "rdbhost"
      }
    },
    "name": "Checkout source code.gclient runhooks",
    "~followup_annotations": [
      "@@@STEP_NEST_LEVEL@1@@@"
    ]
  },
  {
    "cmd": [],
    "name": "Checkout flutter/monorepo"
  },
  {
    "cmd": [
      "python3",
      "-u",
      "RECIPE_MODULE[depot_tools::git]/resources/git_setup.py",
      "--path",
      "[START_DIR]/flutter",
      "--url",
      "https://dart.googlesource.com/monorepo"
    ],
    "luci_context": {
      "realm": {
        "name": "dart:ci.sandbox"
      },
      "resultdb": {
        "current_invocation": {
          "name": "invocations/build:123",
          "update_token": "token"
        },
        "hostname": "rdbhost"
      }
    },
    "name": "Checkout flutter/monorepo.git setup",
    "~followup_annotations": [
      "@@@STEP_NEST_LEVEL@1@@@"
    ]
  },
  {
    "cmd": [
      "git",
      "fetch",
      "origin",
      "--recurse-submodules",
      "--progress",
      "--tags"
    ],
    "cwd": "[START_DIR]/flutter",
    "env": {
      "PATH": "RECIPE_REPO[depot_tools]:<PATH>"
    },
    "infra_step": true,
    "luci_context": {
      "realm": {
        "name": "dart:ci.sandbox"
      },
      "resultdb": {
        "current_invocation": {
          "name": "invocations/build:123",
          "update_token": "token"
        },
        "hostname": "rdbhost"
      }
    },
    "name": "Checkout flutter/monorepo.git fetch",
    "~followup_annotations": [
      "@@@STEP_NEST_LEVEL@1@@@"
    ]
  },
  {
    "cmd": [
      "git",
      "checkout",
      "-f",
      "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
    ],
    "cwd": "[START_DIR]/flutter",
    "infra_step": true,
    "luci_context": {
      "realm": {
        "name": "dart:ci.sandbox"
      },
      "resultdb": {
        "current_invocation": {
          "name": "invocations/build:123",
          "update_token": "token"
        },
        "hostname": "rdbhost"
      }
    },
    "name": "Checkout flutter/monorepo.git checkout",
    "~followup_annotations": [
      "@@@STEP_NEST_LEVEL@1@@@"
    ]
  },
  {
    "cmd": [
      "git",
      "rev-parse",
      "HEAD"
    ],
    "cwd": "[START_DIR]/flutter",
    "infra_step": true,
    "luci_context": {
      "realm": {
        "name": "dart:ci.sandbox"
      },
      "resultdb": {
        "current_invocation": {
          "name": "invocations/build:123",
          "update_token": "token"
        },
        "hostname": "rdbhost"
      }
    },
    "name": "Checkout flutter/monorepo.read revision",
    "~followup_annotations": [
      "@@@STEP_NEST_LEVEL@1@@@",
      "@@@STEP_TEXT@<br/>checked out 'deadbeef'<br/>@@@",
      "@@@SET_BUILD_PROPERTY@got_revision@\"deadbeef\"@@@"
    ]
  },
  {
    "cmd": [
      "git",
      "clean",
      "-f",
      "-d",
      "-x"
    ],
    "cwd": "[START_DIR]/flutter",
    "infra_step": true,
    "luci_context": {
      "realm": {
        "name": "dart:ci.sandbox"
      },
      "resultdb": {
        "current_invocation": {
          "name": "invocations/build:123",
          "update_token": "token"
        },
        "hostname": "rdbhost"
      }
    },
    "name": "Checkout flutter/monorepo.git clean",
    "~followup_annotations": [
      "@@@STEP_NEST_LEVEL@1@@@"
    ]
  },
  {
    "cmd": [
      "git",
      "submodule",
      "sync"
    ],
    "cwd": "[START_DIR]/flutter",
    "infra_step": true,
    "luci_context": {
      "realm": {
        "name": "dart:ci.sandbox"
      },
      "resultdb": {
        "current_invocation": {
          "name": "invocations/build:123",
          "update_token": "token"
        },
        "hostname": "rdbhost"
      }
    },
    "name": "Checkout flutter/monorepo.submodule sync",
    "~followup_annotations": [
      "@@@STEP_NEST_LEVEL@1@@@"
    ]
  },
  {
    "cmd": [
      "git",
      "submodule",
      "update",
      "--init",
      "--recursive"
    ],
    "cwd": "[START_DIR]/flutter",
    "infra_step": true,
    "luci_context": {
      "realm": {
        "name": "dart:ci.sandbox"
      },
      "resultdb": {
        "current_invocation": {
          "name": "invocations/build:123",
          "update_token": "token"
        },
        "hostname": "rdbhost"
      }
    },
    "name": "Checkout flutter/monorepo.submodule update",
    "~followup_annotations": [
      "@@@STEP_NEST_LEVEL@1@@@"
    ]
  },
  {
    "cmd": [
      "vpython3",
      "-u",
      "RECIPE_MODULE[recipe_engine::file]/resources/fileutil.py",
      "--json-output",
      "/path/to/tmp/json",
      "copy",
      "[START_DIR]/flutter/ci/builders/standalone/None.json",
      "/path/to/tmp/"
    ],
    "infra_step": true,
    "luci_context": {
      "realm": {
        "name": "dart:ci.sandbox"
      },
      "resultdb": {
        "current_invocation": {
          "name": "invocations/build:123",
          "update_token": "token"
        },
        "hostname": "rdbhost"
      }
    },
    "name": "Read build config file",
    "~followup_annotations": [
      "@@@STEP_LOG_LINE@None.json@{}@@@",
      "@@@STEP_LOG_END@None.json@@@"
    ]
  },
  {
    "name": "$result"
  }
]