class Opal::Nodes::Args::ExtractKwarg


and as a local variable when it’s not)
$kwargs always exist (as argument when inlining is possible
required keyword argument from $kwargs
This node is responsible for extracting a single

def compile 

def compile
  key_name = @sexp.meta[:arg_name]
  scope.used_kwargs << key_name
  add_temp lvar_name
  helper :get_kwarg
  push "#{lvar_name} = $get_kwarg($kwargs, #{key_name.to_s.inspect})"
end