First commit!

bin/rubocop

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+#!/usr/bin/env ruby
+require "rubygems"
+require "bundler/setup"
+
+# Explicit RuboCop config increases performance slightly while avoiding config confusion.
+ARGV.unshift("--config", File.expand_path("../.rubocop.yml", __dir__))
+
+load Gem.bin_path("rubocop", "rubocop")