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//! Null policy-manager for the generic Caching system 
//! 
//! This is a policy manager that doesn't actually expire anything. 
//! It is useful in multilevel and/or network-based caches. 
//! 
//! @thanks 
//!   Thanks to Francesco Chemolli <kinkie@@roxen.com> for the contribution. 
 
#pike __REAL_VERSION__ 
inherit Cache.Policy.Base; 
 
//! This is an expire function that does nothing. 
void expire (Cache.Storage.Base storage) { 
  /* empty */ 
}