@property<EOL><INDENT>def measure(self) -> MeasureChannel:<DEDENT>
if self._measures:<EOL><INDENT>return self._measures[<NUM_LIT:0>]<EOL><DEDENT>else:<EOL><INDENT>raise PulseError("<STR_LIT>" % self._index)<EOL><DEDENT>
Return the primary measure channel of this qubit.