Imports      []string `yaml:",omitempty"` // import paths used by this package
	TestImports  []string `yaml:",omitempty"` // imports from TestGoFiles
	XTestImports []string `yaml:",omitempty"` // imports from XTestGoFiles
}

// ImportRestriction describes a set of allowable import
// trees for a tree of source code
type ImportRestriction struct {
	// BaseDir is the root of a package tree that is restricted by this