SELECT CAST([('a', 1), ('b', 2)], 'Map(String, UInt8)');
SELECT CAST([('abc', 22), ('def', 33)], 'Map(String, UInt8)');
SELECT CAST([(10, [11, 12]), (13, [14, 15])], 'Map(UInt8, Array(UInt8))');
SELECT CAST([('ghj', [('klm', [16, 17])]), ('nop', [('rst', [18])])], 'Map(String, Map(String, Array(UInt8)))');

SELECT CAST((('a', 1), ('b', 2)), 'Map(String, UInt8)'); -- { serverError TYPE_MISMATCH }
SELECT CAST((('abc', 22), ('def', 33)), 'Map(String, UInt8)'); -- { serverError TYPE_MISMATCH }
SELECT CAST(((10, [11, 12]), (13, [14, 15])), 'Map(UInt8, Array(UInt8))'); -- { serverError TYPE_MISMATCH }
SELECT CAST((('ghj', (('klm', [16, 17]))), ('nop', (('rst', [18])))), 'Map(String, Map(String, Array(UInt8)))'); -- { serverError TYPE_MISMATCH }