module Github

def deprecate(method, alternate_method=nil)

Each message is printed once.
Displays deprecation message to the user. 
def deprecate(method, alternate_method=nil)
  return if deprecation_tracker.include? method
  deprecation_tracker << method
  message = <<-NOTICE
PRECATION_PREFIX}
method} is deprecated.
CE
  if alternate_method
    message << <<-ADDITIONAL
ease use #{alternate_method} instead.
TIONAL
  end
  warn_deprecation(message)
end