Errorf is a wrapper around pkg/errors.Errorf().

New is a wrapper around the standard errors.New, to avoid the need for multiple imports.

Status returns a new error with the designated HTTP status.

Statusf returns a new error with the designated HTTP status.

Wrap is a wrapper around pkg/errors.Wrap().

Wrapf is a wrapper around pkg/errors.Wrapf().

WrapStatus bundles an existing error with a status code.