Argument implements Node.

BooleanValue implements Node, Value.

Directive implements Node.

Document implements Node.

EnumDefinition implements Node, Definition.

EnumValue implements Node, Value.

EnumValueDefinition implements Node, Definition.

Field implements Node, Selection.

FieldDefinition implements Node.

FloatValue implements Node, Value.

FragmentDefinition implements Node, Definition.

FragmentSpread implements Node, Selection.

InlineFragment implements Node, Selection.

InputObjectDefinition implements Node, Definition.

InputValueDefinition implements Node.

InterfaceDefinition implements Node, Definition.

IntValue implements Node, Value.

List implements Node, Type.

ListValue implements Node, Value.

Name implements Node.

Named implements Node, Type.

NonNull implements Node, Type.

ObjectDefinition implements Node, Definition.

ObjectField implements Node, Value.

ObjectValue implements Node, Value.

OperationDefinition implements Node, Definition.

ScalarDefinition implements Node, Definition.

SelectionSet implements Node.

StringValue implements Node, Value.

TypeExtensionDefinition implements Node, Definition.

UnionDefinition implements Node, Definition.

Variable implements Node, Value.

VariableDefinition implements Node.