getDefault method Null safety
Implementation
@$core.pragma('dart2js:noInline')
static SInt64Change getDefault() => _defaultInstance ??= $pb.GeneratedMessage.$_defaultFor<SInt64Change>(create);
@$core.pragma('dart2js:noInline')
static SInt64Change getDefault() => _defaultInstance ??= $pb.GeneratedMessage.$_defaultFor<SInt64Change>(create);