Add Command method to NFT interface and RunWithOutput support to command package

nft.go

@@ -12,6 +12,10 @@ import (
 
 // NFT A client for working with nftables
 type NFT interface {
+	// Command returns the command used to execute nft.
+	// You can execute your raw request.
+	Command() command.NFT
+
 	// Clear clears all rules.
 	//
 	// This command is equivalent to:
@@ -111,3 +115,7 @@ func (n *nft) Table() table.API {
 func (n *nft) Chain() chain.API {
 	return n.chain
 }
+
+func (n *nft) Command() command.NFT {
+	return n.command
+}