toJson method
Implementation
core.Map<core.String, core.dynamic> toJson() => {
if (exclusiveMaximum != null) 'exclusiveMaximum': exclusiveMaximum!,
if (exclusiveMinimum != null) 'exclusiveMinimum': exclusiveMinimum!,
if (maximum != null) 'maximum': maximum!,
if (minimum != null) 'minimum': minimum!,
};