# File lib/r10k/deployment/config.rb, line 20
  def setting(key)
    keys = [key]
    case key
    when String
      keys << key.to_sym
    when Symbol
      keys << key.to_s
    end

    # Scan all possible keys to see if the config has a matching value
    keys.inject(nil) do |rv, k|
      v = @config[k]
      break v unless v.nil?
    end
  end