42
3.14159
3.2e10
2.9E-7
0xbabe
0xBABE

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[
	["number", "42"],
	["number", "3.14159"],
	["number", "3.2e10"],
	["number", "2.9E-7"],
	["number", "0xbabe"],
	["number", "0xBABE"]
]

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Checks for numbers.