digraph graphql {
  rankdir=LR;
  overlap=false;

  // Primitive types.
  node [ shape="ellipse" ];
  Boolean;
  String;

  node [ shape=record ];

  enumValue [ label="<pk>__EnumValue
    |<deprReason>deprecationReason
    |<desc>description
    |<isDepr>isDeprecated!
    |<name>name!
  " ];
  field [label="<pk>__Field
    |<args>args[]!
    |<deprReason>deprecationReason
    |<desc>description
    |<isDepr>isDeprecated!
    |<name>name
    |<resolve>resolve()
    |<type>type!
  "];
  g_node [ label="<pk>Node" ];
  inputValue [ label="<pk>__InputValue
    |<default>defaultValue
    |<desc>description
    |<name>name
    |<type>type
  "];
  kind [ label="<pk>__TypeKind
    |ENUM
    \nINPUT_OBJECT
    \nINTERFACE
    \nLIST
    \nNON_NULL
    \nOBJECT
    \nSCALAR
    \nUNION
  "];
  schema [ label="<pk>Schema|<query>query|<mutation>mutation|<subscription>subscription" ];
  type [ label="<pk>__Type
    |<desc>description
    |<enum>enumValues(includeDeprecated: Boolean)[]
    |<fields>fields(includeDeprecated: Boolean)[]
    |<input>inputFields[]!
    |<interfaces>interfaces[]!
    |<kind>kind!
    |<name>name
    |<of>ofType
    |<pTypes>possibleTypes[]!
  "];

  edge [ label="is_a", color=silver];

  enumValue:deprReason -> String;
  enumValue:desc -> String;
  enumValue:isDepr -> Boolean;
  enumValue:name -> String;

  field:args -> inputValue:pk;
  field:deprReason -> String;
  field:desc -> String;
  field:isDepr -> Boolean;
  field:name -> String;
  field:type -> type:pk;

  inputValue:default -> String;
  inputValue:desc -> String;
  inputValue:name -> String;
  inputValue:type -> type:pk;

  schema:mutation -> type:pk;
  schema:query -> type:pk;
  schema:subscription -> type:pk;

  type:desc -> String;
  type:enum -> enumValue:pk;
  type:fields -> field:pk;
  type:input -> inputValue:pk;
  type:interfaces -> type:pk;
  type:kind -> kind:pk;
  type:name -> String;
  type:of -> type:pk;
  type:pTypes -> type:pk;

  edge [ label="returns", color=lightblue ];
  field:resolve -> g_node:pk;

  edge [ style=solid; color=silver; label="extends"];

}