Remove explicit loop usages

[argaen]

No description provided.

[codecov-io]

Codecov Report

Merging #305 into master will increase coverage by 0.4%.
The diff coverage is 100%.

@@            Coverage Diff            @@
##           master     #305     +/-   ##
=========================================
+ Coverage    99.2%   99.61%   +0.4%     
=========================================
  Files          11       12      +1     
  Lines         883     1026    +143     
  Branches       93      120     +27     
=========================================
+ Hits          876     1022    +146     
+ Misses          7        4      -3

Impacted Files	Coverage Δ
aiocache/backends/redis.py	100% <100%> (ø)	⬆️
aiocache/base.py	100% <0%> (ø)	⬆️
aiocache/decorators.py	100% <0%> (ø)	⬆️
aiocache/log.py	100% <0%> (ø)
aiocache/serializers.py	94.73% <0%> (+2.84%)	⬆️
aiocache/__init__.py	93.1% <0%> (+11.28%)	⬆️

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