This method is deprecated or moved on the latest stable version. The last existing version (v2_2_9) is shown here.
check_arity(obj, n_args)
Returns true, if the arity of obj matches n_args
# File lib/xmlrpc/server.rb, line 322 def check_arity(obj, n_args) ary = obj.arity if ary >= 0 n_args == ary else n_args >= (ary+1).abs end end