Cause returns the underlying cause of the error, if possible.

Errorf formats according to a format specifier and returns the string as a value that satisfies error.

New returns an error with the supplied message.

ReportToSentry reports err to the configured sentry server.

Wrap returns an error annotating err with message.

Wrapf returns an error annotating err with the format specifier.

StackTracer represents a type (usually an error) that can provide a stack trace.