method

concerning

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What's this?

concerning(topic, prepend: false, &block) public

Define a new concern and mix it in.

# File activesupport/lib/active_support/core_ext/module/concerning.rb, line 114
    def concerning(topic, prepend: false, &block)
      method = prepend ? :prepend : :include
      __send__(method, concern(topic, &block))
    end

concerning

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