$builder
$builder : \phpDocumentor\Descriptor\ProjectDescriptorBuilder|null
Base class for all assemblers.
setBuilder(\phpDocumentor\Descriptor\ProjectDescriptorBuilder $builder) : void
Registers the Builder with this Assembler.
The Builder may be used to recursively assemble Descriptors using the {@link ProjectDescriptorBuilder::buildDescriptor()} method.
\phpDocumentor\Descriptor\ProjectDescriptorBuilder | $builder |