+Methods are expected to be library internal structures.
+It's left to the caller to define the exact contents.
+
+Numeric identities are expected to be an algorithm identity for the methods.
+It's left to the caller to define exactly what an algorithm is, and to allocate
+these numeric identities accordingly.
+
+The B<OSSL_METHOD_STORE> also holds an internal query cache, which is accessed
+separately (see L</Cache Functions> below).
+
+=head2 Store Functions
+
+ossl_method_store_init() initialises the method store subsystem.