{
  "type_list": [
    {
      "Object": {
        "gql_object": "List",
        "sql_table": "List"
      }
    },
    {
      "ObjectField": {
        "gql_object": "List",
        "gql_field": "id",
        "sql_table": "List",
        "sql_column": "id"
      }
    },
    {
      "ObjectField": {
        "gql_object": "List",
        "gql_field": "title",
        "sql_table": "List",
        "sql_column": "title"
      }
    },
    {
      "Object": {
        "gql_object": "Task",
        "sql_table": "Task"
      }
    },
    {
      "ObjectField": {
        "gql_object": "Task",
        "gql_field": "id",
        "sql_table": "Task",
        "sql_column": "id"
      }
    },
    {
      "ObjectField": {
        "gql_object": "Task",
        "gql_field": "title",
        "sql_table": "Task",
        "sql_column": "title"
      }
    },
    {
      "ObjectField": {
        "gql_object": "Task",
        "gql_field": "description",
        "sql_table": "Task",
        "sql_column": "description"
      }
    },
    {
      "ObjectField": {
        "gql_object": "Task",
        "gql_field": "completed",
        "sql_table": "Task",
        "sql_column": "completed"
      }
    },
    {
      "Object": {
        "gql_object": "User",
        "sql_table": "User"
      }
    },
    {
      "ObjectField": {
        "gql_object": "User",
        "gql_field": "username",
        "sql_table": "User",
        "sql_column": "username"
      }
    },
    {
      "ObjectField": {
        "gql_object": "User",
        "gql_field": "name",
        "sql_table": "User",
        "sql_column": "name"
      }
    },
    {
      "Join": {
        "gql_object": "List",
        "gql_field": "user",
        "gql_type": "User",
        "sql_join_type": {
          "OneToMany": {
            "sql_table_of_object": "List",
            "sql_table_of_field": "User",
            "sql_mapped_columns": [
              [
                "user_username",
                "username"
              ]
            ]
          }
        }
      }
    },
    {
      "Join": {
        "gql_object": "User",
        "gql_field": "lists",
        "gql_type": "List",
        "sql_join_type": {
          "ManyToOne": {
            "sql_table_of_object": "User",
            "sql_table_of_field": "List",
            "sql_mapped_columns": [
              [
                "username",
                "user_username"
              ]
            ]
          }
        }
      }
    },
    {
      "Join": {
        "gql_object": "Task",
        "gql_field": "user",
        "gql_type": "User",
        "sql_join_type": {
          "OneToMany": {
            "sql_table_of_object": "Task",
            "sql_table_of_field": "User",
            "sql_mapped_columns": [
              [
                "user_username",
                "username"
              ]
            ]
          }
        }
      }
    },
    {
      "Join": {
        "gql_object": "User",
        "gql_field": "tasks",
        "gql_type": "Task",
        "sql_join_type": {
          "ManyToOne": {
            "sql_table_of_object": "User",
            "sql_table_of_field": "Task",
            "sql_mapped_columns": [
              [
                "username",
                "user_username"
              ]
            ]
          }
        }
      }
    },
    {
      "Join": {
        "gql_object": "Task",
        "gql_field": "list",
        "gql_type": "List",
        "sql_join_type": {
          "OneToMany": {
            "sql_table_of_object": "Task",
            "sql_table_of_field": "List",
            "sql_mapped_columns": [
              [
                "list_id",
                "id"
              ]
            ]
          }
        }
      }
    },
    {
      "Join": {
        "gql_object": "List",
        "gql_field": "tasks",
        "gql_type": "Task",
        "sql_join_type": {
          "ManyToOne": {
            "sql_table_of_object": "List",
            "sql_table_of_field": "Task",
            "sql_mapped_columns": [
              [
                "id",
                "list_id"
              ]
            ]
          }
        }
      }
    }
  ]
}