dart run pigeon  `
    --input pigeons/messages.dart `
    --dart_out lib/messages.dart `
    --objc_header_out ios/Classes/messages.h `
    --objc_source_out ios/Classes/messages.m  `
    --experimental_swift_out ios/Classes/messages.swift `
    --objc_prefix FLT `
    --java_out android/src/main/kotlin/com/beswell/sensor/Messages.java `
    --java_package "com.beswell.sensor" ;