Commits on Feb 3, 2022

1. Tweak array construction in normalize_keys …

   This results in a performance increase, and reduced object allocation, when normalizing keys -
   
   ```ruby
   report = Benchmark.ips do |x|
     x.report("concat") do
       ex = []
       ex.concat ['foo']
       ex.concat ['bar', 'baz']
       ex.concat ['quix']
       ex
     end
     x.report("splat") do
       [
         *['foo'],
         *['bar', 'baz'],
         *['quix']
       ]
     end
     x.compare!
   Warming up --------------------------------------
                 concat   129.103k i/100ms
                  splat   243.963k i/100ms
   Calculating -------------------------------------
                 concat      1.176M (± 9.7%) i/s -      5.810M in   5.009251s
                  splat      2.435M (±11.8%) i/s -     11.954M in   5.019257s
   
   Comparison:
                  splat:  2434746.6 i/s
                 concat:  1176432.3 i/s - 2.07x  (± 0.00) slower
   ```

   

   codealchemy committed Feb 3, 2022
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   f3c1936 View commit details

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