system-function_feature.test 309 Bytes
⎕IO
⎕WA
⎕CR
⎕TCNL

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[
	["system-function", "⎕IO"],
	["system-function", "⎕WA"],
	["system-function", "⎕CR"],
	["system-function", "⎕TCNL"]
]

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Checks for system functions.