Imports of package validation

PathSynopsis
github.com/go-openapi/spec
github.com/go-openapi/strfmtPackage strfmt contains custom string formats
github.com/go-openapi/validatePackage validate provides methods to validate a swagger specification, as well as tools to validate data against their schema.
k8s.io/apiextensions-apiserver/pkg/apis/apiextensionsPackage apiextensions is the internal version of the API.