FUNCTION
json.is_big_integer
function is_big_integer(): booleanDetermine whether this JSON value can be converted to big_integer.
All JSON values that return true with is_integer() also return true with is_big_integer(),
though the reverse is not the case, since big_integer values may fall outside the integer range.
Returns
true if this JSON value can be converted to big_integer, false otherwise
Since
0.14.16
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