Summary: 6 instances, 5 unique

Text	Count
// FIXME (perf): add specialized deserializer to avoid intermediate boxing	1
// TODO: combine isError and errorParser in a single method with a tri-state result?	1
// FIXME (perf): buffer events until we see the tag property instead of materializing the json tree	1
// TODO: add fields for the detailed representation of errors	1
// TODO: handle specific configuration	2