You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: memory_store.rb
    path of file: ./repos/stackneveroverflow/vendor/bundle/ruby/2.3.0/gems/activesupport-5.0.3/lib/active_support/cache
    
    the code of the file until where you have to start completion: require 'monitor'

module ActiveSupport
  module Cache
    # A cache store implementation which stores everything into memory in the
    # same proc
    
        def delete_entry(key, options) # :nodoc:
          synchronize do
            @key_access.delete(key)
            entry = @data.delete(key)
            @cache_size -= cached_size(key, entry) if entry
            !!entry
          end
        end