[
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    "type": "action_node",
    "named": true,
    "fields": {},
    "children": {
      "multiple": true,
      "required": true,
      "types": [
        {
          "type": "action_param",
          "named": true
        },
        {
          "type": "identifier",
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        }
      ]
    }
  },
  {
    "type": "action_param",
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    "fields": {},
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      "types": [
        {
          "type": "dotted_path",
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        },
        {
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        }
      ]
    }
  },
  {
    "type": "and_expression",
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    "fields": {},
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      "types": [
        {
          "type": "expression",
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        }
      ]
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  },
  {
    "type": "arc_state",
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        "required": true,
        "types": [
          {
            "type": "identifier",
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          }
        ]
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    },
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      "types": [
        {
          "type": "field",
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        },
        {
          "type": "on_enter",
          "named": true
        },
        {
          "type": "transition",
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        }
      ]
    }
  },
  {
    "type": "behavior",
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        "types": [
          {
            "type": "identifier",
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          }
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          {
            "type": "behavior_node",
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          }
        ]
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    },
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        {
          "type": "field",
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        }
      ]
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  },
  {
    "type": "behavior_node",
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    "fields": {},
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      "required": true,
      "types": [
        {
          "type": "action_node",
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        },
        {
          "type": "condition_node",
          "named": true
        },
        {
          "type": "decorator_node",
          "named": true
        },
        {
          "type": "if_decorator_node",
          "named": true
        },
        {
          "type": "selector_node",
          "named": true
        },
        {
          "type": "sequence_node",
          "named": true
        },
        {
          "type": "subtree_node",
          "named": true
        }
      ]
    }
  },
  {
    "type": "block",
    "named": true,
    "fields": {},
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      "required": false,
      "types": [
        {
          "type": "field",
          "named": true
        }
      ]
    }
  },
  {
    "type": "boolean",
    "named": true,
    "fields": {}
  },
  {
    "type": "character",
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    "fields": {
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        "required": true,
        "types": [
          {
            "type": "block",
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          }
        ]
      },
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          {
            "type": "identifier",
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          }
        ]
      },
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          {
            "type": "identifier",
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          }
        ]
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        "types": [
          {
            "type": "template_clause",
            "named": true
          }
        ]
      }
    }
  },
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    "type": "comparison",
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        "required": true,
        "types": [
          {
            "type": "<",
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          },
          {
            "type": "<=",
            "named": false
          },
          {
            "type": ">",
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          },
          {
            "type": ">=",
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          },
          {
            "type": "is",
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          }
        ]
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    },
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      "required": true,
      "types": [
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          "type": "expression",
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        }
      ]
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  },
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    "type": "concept_comparison",
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        "required": true,
        "types": [
          {
            "type": "identifier",
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          }
        ]
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    },
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        {
          "type": "variant_pattern",
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        }
      ]
    }
  },
  {
    "type": "concept_declaration",
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    "fields": {
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        "required": true,
        "types": [
          {
            "type": "identifier",
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          }
        ]
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    }
  },
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    "type": "condition_expr",
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    "fields": {},
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          "type": "any_type",
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        },
        {
          "type": "is_condition",
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        }
      ]
    }
  },
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    "type": "condition_node",
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    "fields": {
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        "required": true,
        "types": [
          {
            "type": "expression",
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          }
        ]
      }
    }
  },
  {
    "type": "declaration",
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    "fields": {},
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      "required": true,
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        {
          "type": "behavior",
          "named": true
        },
        {
          "type": "character",
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        },
        {
          "type": "concept_comparison",
          "named": true
        },
        {
          "type": "concept_declaration",
          "named": true
        },
        {
          "type": "enum_declaration",
          "named": true
        },
        {
          "type": "institution",
          "named": true
        },
        {
          "type": "life_arc",
          "named": true
        },
        {
          "type": "location",
          "named": true
        },
        {
          "type": "relationship",
          "named": true
        },
        {
          "type": "schedule",
          "named": true
        },
        {
          "type": "species",
          "named": true
        },
        {
          "type": "sub_concept",
          "named": true
        },
        {
          "type": "template",
          "named": true
        },
        {
          "type": "use_declaration",
          "named": true
        }
      ]
    }
  },
  {
    "type": "decorator_keyword",
    "named": true,
    "fields": {}
  },
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    "type": "decorator_node",
    "named": true,
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        "required": true,
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          {
            "type": "behavior_node",
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          }
        ]
      },
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        "required": true,
        "types": [
          {
            "type": "decorator_keyword",
            "named": true
          }
        ]
      },
      "params": {
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        "required": false,
        "types": [
          {
            "type": "decorator_params",
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          }
        ]
      }
    }
  },
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    "type": "decorator_params",
    "named": true,
    "fields": {},
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      "required": true,
      "types": [
        {
          "type": "duration",
          "named": true
        },
        {
          "type": "integer",
          "named": true
        }
      ]
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  },
  {
    "type": "dotted_path",
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    "fields": {},
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      "required": true,
      "types": [
        {
          "type": "identifier",
          "named": true
        }
      ]
    }
  },
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    "type": "enum_declaration",
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    "fields": {
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        "required": true,
        "types": [
          {
            "type": "identifier",
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          }
        ]
      }
    },
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      "required": true,
      "types": [
        {
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        }
      ]
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  },
  {
    "type": "expression",
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    "fields": {},
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      "required": true,
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          "type": "and_expression",
          "named": true
        },
        {
          "type": "comparison",
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        },
        {
          "type": "field_access",
          "named": true
        },
        {
          "type": "not_expression",
          "named": true
        },
        {
          "type": "or_expression",
          "named": true
        },
        {
          "type": "primary_expression",
          "named": true
        }
      ]
    }
  },
  {
    "type": "field",
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        "required": false,
        "types": [
          {
            "type": "dotted_path",
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          }
        ]
      },
      "value": {
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        "required": false,
        "types": [
          {
            "type": "value",
            "named": true
          }
        ]
      }
    },
    "children": {
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      "required": false,
      "types": [
        {
          "type": "prose_block",
          "named": true
        }
      ]
    }
  },
  {
    "type": "field_access",
    "named": true,
    "fields": {},
    "children": {
      "multiple": true,
      "required": true,
      "types": [
        {
          "type": "expression",
          "named": true
        },
        {
          "type": "identifier",
          "named": true
        }
      ]
    }
  },
  {
    "type": "field_condition",
    "named": true,
    "fields": {
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        "required": true,
        "types": [
          {
            "type": "condition_expr",
            "named": true
          }
        ]
      },
      "sub_concept": {
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        "required": true,
        "types": [
          {
            "type": "dotted_path",
            "named": true
          }
        ]
      }
    }
  },
  {
    "type": "if_decorator_node",
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    "fields": {
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        "required": true,
        "types": [
          {
            "type": "behavior_node",
            "named": true
          }
        ]
      },
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        "required": true,
        "types": [
          {
            "type": "expression",
            "named": true
          }
        ]
      }
    }
  },
  {
    "type": "include",
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    "fields": {},
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      "required": true,
      "types": [
        {
          "type": "identifier",
          "named": true
        }
      ]
    }
  },
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    "type": "institution",
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    "fields": {
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        "required": true,
        "types": [
          {
            "type": "identifier",
            "named": true
          }
        ]
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    },
    "children": {
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      "required": true,
      "types": [
        {
          "type": "block",
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        }
      ]
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  },
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    "type": "is_condition",
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    "fields": {},
    "children": {
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      "required": true,
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          "type": "dotted_path",
          "named": true
        },
        {
          "type": "identifier",
          "named": true
        }
      ]
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  },
  {
    "type": "life_arc",
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    "fields": {
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        "required": true,
        "types": [
          {
            "type": "identifier",
            "named": true
          }
        ]
      }
    },
    "children": {
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      "required": false,
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        {
          "type": "arc_state",
          "named": true
        },
        {
          "type": "field",
          "named": true
        }
      ]
    }
  },
  {
    "type": "list",
    "named": true,
    "fields": {},
    "children": {
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      "required": false,
      "types": [
        {
          "type": "value",
          "named": true
        }
      ]
    }
  },
  {
    "type": "location",
    "named": true,
    "fields": {
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        "multiple": false,
        "required": true,
        "types": [
          {
            "type": "identifier",
            "named": true
          }
        ]
      }
    },
    "children": {
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      "required": true,
      "types": [
        {
          "type": "block",
          "named": true
        }
      ]
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  },
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    "type": "not_expression",
    "named": true,
    "fields": {},
    "children": {
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      "required": true,
      "types": [
        {
          "type": "expression",
          "named": true
        }
      ]
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  },
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    "type": "object",
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    "fields": {},
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      "required": true,
      "types": [
        {
          "type": "block",
          "named": true
        }
      ]
    }
  },
  {
    "type": "on_enter",
    "named": true,
    "fields": {},
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      "required": true,
      "types": [
        {
          "type": "block",
          "named": true
        }
      ]
    }
  },
  {
    "type": "or_expression",
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    "fields": {},
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      "required": true,
      "types": [
        {
          "type": "expression",
          "named": true
        }
      ]
    }
  },
  {
    "type": "override",
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    "fields": {},
    "children": {
      "multiple": true,
      "required": true,
      "types": [
        {
          "type": "override_op",
          "named": true
        },
        {
          "type": "path",
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        }
      ]
    }
  },
  {
    "type": "override_op",
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    "fields": {},
    "children": {
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      "required": true,
      "types": [
        {
          "type": "field",
          "named": true
        },
        {
          "type": "identifier",
          "named": true
        }
      ]
    }
  },
  {
    "type": "participant",
    "named": true,
    "fields": {},
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      "required": true,
      "types": [
        {
          "type": "block",
          "named": true
        },
        {
          "type": "identifier",
          "named": true
        },
        {
          "type": "path",
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        }
      ]
    }
  },
  {
    "type": "path",
    "named": true,
    "fields": {},
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      "required": true,
      "types": [
        {
          "type": "path_segments",
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        }
      ]
    }
  },
  {
    "type": "path_segments",
    "named": true,
    "fields": {},
    "children": {
      "multiple": true,
      "required": true,
      "types": [
        {
          "type": "identifier",
          "named": true
        }
      ]
    }
  },
  {
    "type": "primary_expression",
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    "fields": {},
    "children": {
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      "required": false,
      "types": [
        {
          "type": "boolean",
          "named": true
        },
        {
          "type": "float",
          "named": true
        },
        {
          "type": "integer",
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        },
        {
          "type": "path",
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        },
        {
          "type": "string",
          "named": true
        }
      ]
    }
  },
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    "type": "prose_block",
    "named": true,
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        "required": true,
        "types": [
          {
            "type": "prose_content",
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          }
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        "required": true,
        "types": [
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            "type": "prose_marker",
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          }
        ]
      },
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        "required": true,
        "types": [
          {
            "type": "prose_marker",
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          }
        ]
      },
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        "required": true,
        "types": [
          {
            "type": "identifier",
            "named": true
          }
        ]
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    }
  },
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    "type": "range",
    "named": true,
    "fields": {},
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      "multiple": true,
      "required": true,
      "types": [
        {
          "type": "float",
          "named": true
        },
        {
          "type": "integer",
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        }
      ]
    }
  },
  {
    "type": "relationship",
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            "type": "identifier",
            "named": true
          }
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          "type": "field",
          "named": true
        },
        {
          "type": "participant",
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        }
      ]
    }
  },
  {
    "type": "schedule",
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        "required": true,
        "types": [
          {
            "type": "identifier",
            "named": true
          }
        ]
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    },
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          "type": "field",
          "named": true
        },
        {
          "type": "schedule_block",
          "named": true
        }
      ]
    }
  },
  {
    "type": "schedule_block",
    "named": true,
    "fields": {
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        "multiple": false,
        "required": true,
        "types": [
          {
            "type": "identifier",
            "named": true
          }
        ]
      },
      "end": {
        "multiple": false,
        "required": true,
        "types": [
          {
            "type": "time",
            "named": true
          }
        ]
      },
      "start": {
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        "required": true,
        "types": [
          {
            "type": "time",
            "named": true
          }
        ]
      }
    },
    "children": {
      "multiple": false,
      "required": true,
      "types": [
        {
          "type": "block",
          "named": true
        }
      ]
    }
  },
  {
    "type": "selector_node",
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    "fields": {
      "label": {
        "multiple": false,
        "required": false,
        "types": [
          {
            "type": "identifier",
            "named": true
          }
        ]
      }
    },
    "children": {
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      "required": true,
      "types": [
        {
          "type": "behavior_node",
          "named": true
        }
      ]
    }
  },
  {
    "type": "sequence_node",
    "named": true,
    "fields": {
      "label": {
        "multiple": false,
        "required": false,
        "types": [
          {
            "type": "identifier",
            "named": true
          }
        ]
      }
    },
    "children": {
      "multiple": true,
      "required": true,
      "types": [
        {
          "type": "behavior_node",
          "named": true
        }
      ]
    }
  },
  {
    "type": "source_file",
    "named": true,
    "fields": {},
    "children": {
      "multiple": true,
      "required": false,
      "types": [
        {
          "type": "declaration",
          "named": true
        }
      ]
    }
  },
  {
    "type": "species",
    "named": true,
    "fields": {
      "name": {
        "multiple": false,
        "required": true,
        "types": [
          {
            "type": "identifier",
            "named": true
          }
        ]
      }
    },
    "children": {
      "multiple": true,
      "required": false,
      "types": [
        {
          "type": "field",
          "named": true
        },
        {
          "type": "include",
          "named": true
        }
      ]
    }
  },
  {
    "type": "sub_concept",
    "named": true,
    "fields": {
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        "multiple": false,
        "required": true,
        "types": [
          {
            "type": "sub_concept_enum_body",
            "named": true
          },
          {
            "type": "sub_concept_record_body",
            "named": true
          }
        ]
      },
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        "multiple": false,
        "required": true,
        "types": [
          {
            "type": "identifier",
            "named": true
          }
        ]
      },
      "parent": {
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        "required": true,
        "types": [
          {
            "type": "identifier",
            "named": true
          }
        ]
      }
    }
  },
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    "type": "sub_concept_enum_body",
    "named": true,
    "fields": {},
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      "required": true,
      "types": [
        {
          "type": "identifier",
          "named": true
        }
      ]
    }
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        "required": true,
        "types": [
          {
            "type": "identifier",
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          }
        ]
      },
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          {
            "type": "any_type",
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          },
          {
            "type": "identifier",
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          }
        ]
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    }
  },
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    "type": "sub_concept_record_body",
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      "required": true,
      "types": [
        {
          "type": "sub_concept_field",
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        }
      ]
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  },
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    "fields": {},
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      "required": true,
      "types": [
        {
          "type": "path",
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        }
      ]
    }
  },
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        "required": true,
        "types": [
          {
            "type": "identifier",
            "named": true
          }
        ]
      },
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          {
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          }
        ]
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    },
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        {
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          "named": true
        },
        {
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        }
      ]
    }
  },
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    "fields": {},
    "children": {
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      "required": true,
      "types": [
        {
          "type": "identifier",
          "named": true
        }
      ]
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  },
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    "fields": {
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        "required": true,
        "types": [
          {
            "type": "expression",
            "named": true
          }
        ]
      },
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        "required": true,
        "types": [
          {
            "type": "identifier",
            "named": true
          }
        ]
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    "fields": {},
    "children": {
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      "required": true,
      "types": [
        {
          "type": "identifier",
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        },
        {
          "type": "path_segments",
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        }
      ]
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  },
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    "fields": {},
    "children": {
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      "required": true,
      "types": [
        {
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          "named": true
        },
        {
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          "named": true
        },
        {
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        },
        {
          "type": "integer",
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        },
        {
          "type": "list",
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        },
        {
          "type": "object",
          "named": true
        },
        {
          "type": "override",
          "named": true
        },
        {
          "type": "path",
          "named": true
        },
        {
          "type": "prose_block",
          "named": true
        },
        {
          "type": "range",
          "named": true
        },
        {
          "type": "string",
          "named": true
        },
        {
          "type": "time",
          "named": true
        }
      ]
    }
  },
  {
    "type": "variant_pattern",
    "named": true,
    "fields": {
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        "required": true,
        "types": [
          {
            "type": "identifier",
            "named": true
          }
        ]
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    },
    "children": {
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      "required": true,
      "types": [
        {
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          "named": true
        }
      ]
    }
  },
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    "named": false
  },
  {
    "type": ")",
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  },
  {
    "type": "*",
    "named": false
  },
  {
    "type": ",",
    "named": false
  },
  {
    "type": "->",
    "named": false
  },
  {
    "type": ".",
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  },
  {
    "type": "..",
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  },
  {
    "type": ":",
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  },
  {
    "type": "::",
    "named": false
  },
  {
    "type": ";",
    "named": false
  },
  {
    "type": "<",
    "named": false
  },
  {
    "type": "<=",
    "named": false
  },
  {
    "type": ">",
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  },
  {
    "type": ">=",
    "named": false
  },
  {
    "type": "@",
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  },
  {
    "type": "[",
    "named": false
  },
  {
    "type": "]",
    "named": false
  },
  {
    "type": "and",
    "named": false
  },
  {
    "type": "any_type",
    "named": true
  },
  {
    "type": "append",
    "named": false
  },
  {
    "type": "as",
    "named": false
  },
  {
    "type": "behavior",
    "named": false
  },
  {
    "type": "block_comment",
    "named": true
  },
  {
    "type": "character",
    "named": false
  },
  {
    "type": "choose",
    "named": false
  },
  {
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    "named": false
  },
  {
    "type": "concept_comparison",
    "named": false
  },
  {
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    "named": false
  },
  {
    "type": "duration",
    "named": true
  },
  {
    "type": "enter",
    "named": false
  },
  {
    "type": "enum",
    "named": false
  },
  {
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  },
  {
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    "named": false
  },
  {
    "type": "float",
    "named": true
  },
  {
    "type": "from",
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  },
  {
    "type": "identifier",
    "named": true
  },
  {
    "type": "if",
    "named": false
  },
  {
    "type": "include",
    "named": false
  },
  {
    "type": "institution",
    "named": false
  },
  {
    "type": "integer",
    "named": true
  },
  {
    "type": "invert",
    "named": false
  },
  {
    "type": "is",
    "named": false
  },
  {
    "type": "life_arc",
    "named": false
  },
  {
    "type": "line_comment",
    "named": true
  },
  {
    "type": "location",
    "named": false
  },
  {
    "type": "not",
    "named": false
  },
  {
    "type": "on",
    "named": false
  },
  {
    "type": "or",
    "named": false
  },
  {
    "type": "other",
    "named": false
  },
  {
    "type": "prose_content",
    "named": true
  },
  {
    "type": "prose_marker",
    "named": true
  },
  {
    "type": "relationship",
    "named": false
  },
  {
    "type": "remove",
    "named": false
  },
  {
    "type": "repeat",
    "named": false
  },
  {
    "type": "retry",
    "named": false
  },
  {
    "type": "schedule",
    "named": false
  },
  {
    "type": "self",
    "named": false
  },
  {
    "type": "species",
    "named": false
  },
  {
    "type": "state",
    "named": false
  },
  {
    "type": "strict",
    "named": false
  },
  {
    "type": "string",
    "named": true
  },
  {
    "type": "sub_concept",
    "named": false
  },
  {
    "type": "succeed_always",
    "named": false
  },
  {
    "type": "template",
    "named": false
  },
  {
    "type": "then",
    "named": false
  },
  {
    "type": "time",
    "named": true
  },
  {
    "type": "timeout",
    "named": false
  },
  {
    "type": "true",
    "named": false
  },
  {
    "type": "use",
    "named": false
  },
  {
    "type": "when",
    "named": false
  },
  {
    "type": "{",
    "named": false
  },
  {
    "type": "}",
    "named": false
  }
]