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""" Interface definition for oscilloscope devices. """
class Oscilloscope:
"""
This interface specifies the common API for all
supported oscilloscope devices.
"""
def measureAmplitude(self, channel: int) -> float:
""" Return amplitude measurement on specific channel. """
def measurePeakToPeak(self, channel: int) -> float:
""" Return peak-to-peak measurement on specific channel. """
def measureRMS(self, channel: int) -> float:
""" Return RMS measurement on specific channel. """
def measureFrequency(self, channel: int) -> float:
""" Return frequency measurement on specific channel. """
def setVoltsPerDivision(self, channel: int, volts: float) -> None:
""" Sets the vertical scale of specific channel. """
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