[
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    "type": "add_instruction",
    "named": true,
    "fields": {},
    "children": {
      "multiple": true,
      "required": true,
      "types": [
        {
          "type": "param",
          "named": true
        },
        {
          "type": "path",
          "named": true
        }
      ]
    }
  },
  {
    "type": "arg_instruction",
    "named": true,
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        "required": false,
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          {
            "type": "double_quoted_string",
            "named": true
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            "type": "unquoted_string",
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          {
            "type": "unquoted_string",
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    "fields": {},
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          "type": "shell_command",
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        {
          "type": "string_array",
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  {
    "type": "copy_instruction",
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    "fields": {},
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      "multiple": true,
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          "type": "param",
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    "type": "cross_build_instruction",
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    "fields": {}
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          "type": "escape_sequence",
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          "type": "shell_command",
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          {
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        {
          "type": "variable",
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    "type": "expose_instruction",
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    "fields": {},
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          "type": "expansion",
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        {
          "type": "expose_port",
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  {
    "type": "expose_port",
    "named": true,
    "fields": {}
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    "type": "from_instruction",
    "named": true,
    "fields": {
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        "required": false,
        "types": [
          {
            "type": "image_alias",
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          }
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    "children": {
      "multiple": true,
      "required": true,
      "types": [
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          "type": "image_spec",
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        },
        {
          "type": "param",
          "named": true
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    "type": "healthcheck_instruction",
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    "fields": {},
    "children": {
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        {
          "type": "cmd_instruction",
          "named": true
        },
        {
          "type": "param",
          "named": true
        }
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  {
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          "type": "expansion",
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        }
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    "type": "image_digest",
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    "fields": {},
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      "required": false,
      "types": [
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          "type": "expansion",
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  {
    "type": "image_name",
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    "fields": {},
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      "multiple": true,
      "required": false,
      "types": [
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          "type": "expansion",
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        "types": [
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            "type": "image_digest",
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          }
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        "types": [
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            "type": "image_name",
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          }
        ]
      },
      "tag": {
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        "required": false,
        "types": [
          {
            "type": "image_tag",
            "named": true
          }
        ]
      }
    }
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  {
    "type": "image_tag",
    "named": true,
    "fields": {},
    "children": {
      "multiple": true,
      "required": false,
      "types": [
        {
          "type": "expansion",
          "named": true
        }
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    }
  },
  {
    "type": "label_instruction",
    "named": true,
    "fields": {},
    "children": {
      "multiple": true,
      "required": true,
      "types": [
        {
          "type": "label_pair",
          "named": true
        }
      ]
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    "type": "label_pair",
    "named": true,
    "fields": {
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        "required": true,
        "types": [
          {
            "type": "unquoted_string",
            "named": true
          }
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        "types": [
          {
            "type": "double_quoted_string",
            "named": true
          },
          {
            "type": "unquoted_string",
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          }
        ]
      }
    }
  },
  {
    "type": "maintainer_instruction",
    "named": true,
    "fields": {}
  },
  {
    "type": "onbuild_instruction",
    "named": true,
    "fields": {},
    "children": {
      "multiple": false,
      "required": true,
      "types": [
        {
          "type": "add_instruction",
          "named": true
        },
        {
          "type": "arg_instruction",
          "named": true
        },
        {
          "type": "cmd_instruction",
          "named": true
        },
        {
          "type": "copy_instruction",
          "named": true
        },
        {
          "type": "cross_build_instruction",
          "named": true
        },
        {
          "type": "entrypoint_instruction",
          "named": true
        },
        {
          "type": "env_instruction",
          "named": true
        },
        {
          "type": "expose_instruction",
          "named": true
        },
        {
          "type": "from_instruction",
          "named": true
        },
        {
          "type": "healthcheck_instruction",
          "named": true
        },
        {
          "type": "label_instruction",
          "named": true
        },
        {
          "type": "maintainer_instruction",
          "named": true
        },
        {
          "type": "onbuild_instruction",
          "named": true
        },
        {
          "type": "run_instruction",
          "named": true
        },
        {
          "type": "shell_instruction",
          "named": true
        },
        {
          "type": "stopsignal_instruction",
          "named": true
        },
        {
          "type": "user_instruction",
          "named": true
        },
        {
          "type": "volume_instruction",
          "named": true
        },
        {
          "type": "workdir_instruction",
          "named": true
        }
      ]
    }
  },
  {
    "type": "param",
    "named": true,
    "fields": {}
  },
  {
    "type": "path",
    "named": true,
    "fields": {},
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      "multiple": true,
      "required": false,
      "types": [
        {
          "type": "expansion",
          "named": true
        }
      ]
    }
  },
  {
    "type": "run_instruction",
    "named": true,
    "fields": {},
    "children": {
      "multiple": false,
      "required": true,
      "types": [
        {
          "type": "shell_command",
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        },
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          "type": "string_array",
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        }
      ]
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    "type": "shell_command",
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    "fields": {},
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      "required": true,
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          "type": "comment",
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        },
        {
          "type": "line_continuation",
          "named": true
        },
        {
          "type": "shell_fragment",
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        }
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    }
  },
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    "type": "shell_fragment",
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    "fields": {}
  },
  {
    "type": "shell_instruction",
    "named": true,
    "fields": {},
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      "types": [
        {
          "type": "string_array",
          "named": true
        }
      ]
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  },
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    "type": "source_file",
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        {
          "type": "add_instruction",
          "named": true
        },
        {
          "type": "arg_instruction",
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        },
        {
          "type": "cmd_instruction",
          "named": true
        },
        {
          "type": "comment",
          "named": true
        },
        {
          "type": "copy_instruction",
          "named": true
        },
        {
          "type": "cross_build_instruction",
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        },
        {
          "type": "entrypoint_instruction",
          "named": true
        },
        {
          "type": "env_instruction",
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        },
        {
          "type": "expose_instruction",
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        },
        {
          "type": "from_instruction",
          "named": true
        },
        {
          "type": "healthcheck_instruction",
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        },
        {
          "type": "label_instruction",
          "named": true
        },
        {
          "type": "maintainer_instruction",
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        },
        {
          "type": "onbuild_instruction",
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        },
        {
          "type": "run_instruction",
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        },
        {
          "type": "shell_instruction",
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        },
        {
          "type": "stopsignal_instruction",
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        },
        {
          "type": "user_instruction",
          "named": true
        },
        {
          "type": "volume_instruction",
          "named": true
        },
        {
          "type": "workdir_instruction",
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      "types": [
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          "type": "expansion",
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            "type": "unquoted_string",
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    "type": "volume_instruction",
    "named": true,
    "fields": {},
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      "required": true,
      "types": [
        {
          "type": "path",
          "named": true
        },
        {
          "type": "string_array",
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        }
      ]
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  },
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    "type": "workdir_instruction",
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    "fields": {},
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      "required": true,
      "types": [
        {
          "type": "path",
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        }
      ]
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  },
  {
    "type": "\n",
    "named": false
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  {
    "type": "\"",
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  },
  {
    "type": "#",
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  },
  {
    "type": "$",
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  },
  {
    "type": ",",
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  },
  {
    "type": "--",
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  },
  {
    "type": "/tcp",
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  },
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    "type": "/udp",
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  },
  {
    "type": ":",
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  },
  {
    "type": "=",
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  },
  {
    "type": "@",
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  },
  {
    "type": "ADD",
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  },
  {
    "type": "ARG",
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  },
  {
    "type": "AS",
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  },
  {
    "type": "CMD",
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  },
  {
    "type": "COPY",
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  },
  {
    "type": "CROSS_BUILD",
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  },
  {
    "type": "ENTRYPOINT",
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  },
  {
    "type": "ENV",
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  },
  {
    "type": "EXPOSE",
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  {
    "type": "FROM",
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  {
    "type": "HEALTHCHECK",
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    "type": "LABEL",
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  },
  {
    "type": "MAINTAINER",
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  },
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    "type": "NONE",
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  },
  {
    "type": "ONBUILD",
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  },
  {
    "type": "RUN",
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  },
  {
    "type": "SHELL",
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  {
    "type": "STOPSIGNAL",
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  },
  {
    "type": "USER",
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  },
  {
    "type": "VOLUME",
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  },
  {
    "type": "WORKDIR",
    "named": false
  },
  {
    "type": "[",
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  },
  {
    "type": "\\ ",
    "named": false
  },
  {
    "type": "]",
    "named": false
  },
  {
    "type": "escape_sequence",
    "named": true
  },
  {
    "type": "line_continuation",
    "named": true
  },
  {
    "type": "variable",
    "named": true
  },
  {
    "type": "{",
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  },
  {
    "type": "}",
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  }
]