class Bundler::UI::Silent

def ask(message)
end

def confirm(message, newline = nil)
end

def debug(message, newline = nil)
end

def debug?
  false
end

def error(message, newline = nil)
end

def info(message, newline = nil)
end

def level(name = nil)
end

def level=(name)
end

def quiet?
  false
end

def silence
  yield
end

def trace(message, newline = nil)
end

def warn(message, newline = nil)
end