N

• nil?

R

• ref

T

• to_s

• Singleton

執行個體公開方法

# File actionpack/lib/action_dispatch/http/mime_type.rb, line 368
def nil?
  true
end

# File actionpack/lib/action_dispatch/http/mime_type.rb, line 376
def ref; end

# File actionpack/lib/action_dispatch/http/mime_type.rb, line 372
def to_s
  ""
end