Print debug information to stderr. (Do nothing if object was constructed with silent_checks=True)

		:param exc: raised exception
		:param decorated_function: target function (function to decorate)
		:param arg_name: function parameter name
		:param arg_spec: function parameter specification

		:return: None

def help_info(self, exc, decorated_function, arg_name, arg_spec):
		""" Print debug information to stderr. (Do nothing if object was constructed with silent_checks=True)

		:param exc: raised exception
		:param decorated_function: target function (function to decorate)
		:param arg_name: function parameter name
		:param arg_spec: function parameter specification

		:return: None
		"""
		if self._silent_checks is not True:
			print('Exception raised:', file=sys.stderr)
			print(str(exc), file=sys.stderr)
			fn_name = Verifier.function_name(decorated_function)
			print('Decorated function: %s' % fn_name, file=sys.stderr)
			if decorated_function.__doc__ is not None:
				print('Decorated function docstrings:', file=sys.stderr)
				print(decorated_function.__doc__, file=sys.stderr)
			print('Argument "%s" specification:' % arg_name, file=sys.stderr)
			if isfunction(arg_spec):
				print(getsource(arg_spec), file=sys.stderr)
			else:
				print(str(arg_spec), file=sys.stderr)
			print('', file=sys.stderr)