# File lib/rack/response.rb, line 70
70:     def finish(&block)
71:       @block = block
72: 
73:       if [204, 304].include?(status.to_i)
74:         header.delete "Content-Type"
75:         [status.to_i, header, []]
76:       else
77:         [status.to_i, header, self]
78:       end
79:     end