func google.golang.org/grpc/metadata.copyOf

6 uses

	google.golang.org/grpc/metadata (current package)
		metadata.go#L102: 		out[k] = copyOf(v)
		metadata.go#L208: 		out[key] = copyOf(v)
		metadata.go#L223: 		return copyOf(v)
		metadata.go#L230: 			return copyOf(v)
		metadata.go#L236: func copyOf(v []string) []string {
		metadata.go#L277: 		out[key] = copyOf(v)