// Package errdefs defines a set of error interfaces that packages should use for communicating classes of errors. // Errors that cross the package boundary should implement one (and only one) of these interfaces. // // Packages should not reference these interfaces directly, only implement them. // To check if a particular error implements one of these interfaces, there are helper // functions provided (e.g. `Is`) which can be used rather than asserting the interfaces directly. // If you must assert on these interfaces, be sure to check the causal chain (`err.Cause()`). package errdefs // import "github.com/docker/docker/errdefs"