As a convention, a method to retrieve the `<variable>` of a `<species_type>` is called `<variable>_<species_type>`.
As of today, the methods only accepts the IDs, not the labels. The reason is primaraly efficiency.
The user should save the index at the beginning of the computation and use them every time they need to.
The complete set of methods available is described in the documentation of the [AdimensionalSolutionExtractor](@ref specmicp::AdimensionalSystemSolutionExtractor).
\defgroup specmicp_api SpecMiCP API
\brief The classes and functions that forms the specmicp/reactmicp api