 returned by DynamoDB
					into instances of <code>NumberValue</code> rather than into native JavaScript numbers.
					Numbers in DynamoDB may have up to 38 digits of precision, which exceeds the
					precision available in a JavaScript <code>number</code>. <code>NumberValue</code> instances therefore
					store the value returned by DynamoDB as a string and will only coerce the value
					into a JavaScript number when the instance appears in an arithmetic expression,
				when it is passed to <code>JSON.str