Generate checks for positional argument testing

		:param decorated_function: function decorator
		:param function_spec: function inspect information
		:param arg_specs: argument specification (same as arg_specs in :meth:`.Verifier.decorate`)

		:return: internal structure, that is used by :meth:`.Verifier._args_checks_test`

def _args_checks_gen(self, decorated_function, function_spec, arg_specs):
		""" Generate checks for positional argument testing

		:param decorated_function: function decorator
		:param function_spec: function inspect information
		:param arg_specs: argument specification (same as arg_specs in :meth:`.Verifier.decorate`)

		:return: internal structure, that is used by :meth:`.Verifier._args_checks_test`
		"""
		inspected_args = function_spec.args
		args_check = {}

		for i in range(len(inspected_args)):
			arg_name = inspected_args[i]

			if arg_name in arg_specs.keys():
				args_check[arg_name] = self.check(arg_specs[arg_name], arg_name, decorated_function)
		return args_check