Arrays must be wrapped in square brackets; parentheses are not supported.
Ragged arrays: The above arrays are collectively a set of ragged arrays. The number of elements in each array varies. When arrays are ragged, some array functions may return null or empty values.
Nested arrays: The last example above is a nested array, in which one array is nested inside of another.
\t escaped characters are supported in inputs for this data type. For more information, see Supported Special Regular Expression Characters.
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