GraphQLNullableTypeThese types can all accept null as a value. type GraphQLNullableType = | GraphQLScalarType | GraphQLObjectType | GraphQLInterfaceType | GraphQLUnionType | GraphQLEnumType | GraphQLInputObjectType | GraphQLList<GraphQLType>;§Type§GraphQLScalarType | GraphQLObjectType | GraphQLInterfaceType | GraphQLUnionType | GraphQLEnumType | GraphQLInputObjectType | GraphQLList<GraphQLType>[src]