FunctionsgetNamedTypegetNamedType CallablegetNamedType(type: undefined | null): voidgetNamedType(type: GraphQLInputType): GraphQLNamedInputTypegetNamedType(type: GraphQLOutputType): GraphQLNamedOutputTypegetNamedType(type: GraphQLType): GraphQLNamedTypegetNamedType(type: Maybe<GraphQLType>): GraphQLNamedType | undefinedParameterstype: undefined | nullReturns void