toJson method
Implementation
core.Map<core.String, core.dynamic> toJson() {
final count = this.count;
final field = this.field;
final frequency = this.frequency;
final histogram = this.histogram;
final sum = this.sum;
return {
'count': ?count,
'field': ?field,
'frequency': ?frequency,
'histogram': ?histogram,
'sum': ?sum,
};
}