This package is intended to give you more control over error handling via error wrapping, stack tracing, and output formatting. Basic error wrapping was added in Go 1.13, but it omitted user-friendly Wrap methods and built-in stack tracing. Other error packages provide some of the features found in eris but without flexible control over error output formatting. This package provides default string and JSON formatters with options to control things like separators and stack trace output. However, it also provides an option to write custom formatters via eris.Unpack.