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Update src/escpos/printer/serial.py

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Add return type

Co-authored-by: Patrick Kanzler <4189642+patkan@users.noreply.github.com>
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Benito López 2023-09-25 18:46:16 +02:00 committed by GitHub
parent 0e41b8414e
commit fd5e4601d8
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src/escpos/printer/serial.py
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@ -165,7 +165,7 @@ class Serial(Escpos):
"""Read the data buffer and return it to the caller.""" """Read the data buffer and return it to the caller."""
return self.device.read(16) return self.device.read(16)
def close(self): def close(self) -> None:
"""Close Serial interface.""" """Close Serial interface."""
if not self._device: if not self._device:
return return