toJson method
Implementation
core.Map<core.String, core.dynamic> toJson() {
final beatsPerMinuteMax = this.beatsPerMinuteMax;
final beatsPerMinuteMin = this.beatsPerMinuteMin;
return {
'beatsPerMinuteMax': ?beatsPerMinuteMax,
'beatsPerMinuteMin': ?beatsPerMinuteMin,
};
}