class IRB::Statement::EmptyInput

def code 

def code
  ""
end

def is_assignment? 

def is_assignment?
  false
end

def should_be_handled_by_debugger?

Debugger takes empty input to repeat the last command 
def should_be_handled_by_debugger?
  true
end

def suppresses_echo? 

def suppresses_echo?
  true
end