array('{{ empty_array.a }}', 'Key "a" does not exist as the array is empty in "%s" at line 1.'),
array('{{ array.a }}', 'Key "a" for array with keys "foo" does not exist in "%s" at line 1.'),
array('{{ attribute(array, -10) }}', 'Key "-10" for array with keys "foo" does not exist in "%s" at line 1.'),
array('{{ empty_array.a }}', 'Key "a" does not exist as the array is empty in "%s" at line 1.'),
array('{{ array.a }}', 'Key "a" for array with keys "foo" does not exist in "%s" at line 1.'),
array('{{ attribute(array, -10) }}', 'Key "-10" for array with keys "foo" does not exist in "%s" at line 1.'),