A root module is one that will be compiled all the way to
object code. This field holds the root module that caused
this module to be loaded. If this module is a root module,
then it will be set to this. This is used to determine
ownership of template instantiation.
The D Programming Language's Unofficial Docs
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A root module is one that will be compiled all the way to object code. This field holds the root module that caused this module to be loaded. If this module is a root module, then it will be set to this. This is used to determine ownership of template instantiation.