Hey guys, Im having trouble with my code for an ultrasonic sensor, but I keep getting this ./opt/arduino-builder/arduino-builder -compile -core-api-version 10611 -build-path /tmp/227253356/build -hardware opt/arduino-builder/hardware -hardware ./opt/cores -tools opt/arduino-builder/tools -tools ./o…

A function-definition is not allowed here before '{' token

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