\begin{ccRefClass}{Lazy_kernel<EK,AK,E2A=KernelD_converter<EK,AK>>}
\ccInclude{CGAL/NewKernel_d/Lazy_kernel.h}

\ccDefinition
A model for \ccc{Kernel}.
\ccc{AK} is an approximate kernel (with an interval number type) and \ccc{EK}
is an exact kernel.

\ccIsModel
\ccRefConceptPage{Kernel}

\ccImplementation
For each object, this kernel stores both an approximate object from
\ccc{AK} and either an exact object from \ccc{EK} or a graph that
allows it to compute such an exact object when needed.

\end{ccRefClass}