class_docstr: This cache prunes out cache entries that are too old.
      
class_docstr_tok: ["This","cache","prunes","out","cache","entries","that","are","too","old","."]
code: def _build(self, key, builder):
      val = builder()
      entry = AgingEntry(val, gettime() + self.maxseconds)
      return entry
  
imports: from time import time
label_desc: Use image node_id 3 for calling the AgingCache obj's underlying member method code with example usage: obj._build(key, builder) and returns: entry