// issue a 'cat' command to retrieve a file from IPFS resp, err := cmds.Request("cat").Option("output", "json").Send(context.Background()) // issue a 'pin rm' command to unpin a file or directory from IPFS resp, err := cmds.Request("pin", "rm", "/ipfs/Qmabc123").Send(context.Background())In the first example, the `Request` method is used to issue the `cat` command and request the output format to be in JSON. The `Send` method is used to execute the command with a context that cancels upon completion. The response from the command is returned in the `resp` variable. In the second example, the `Request` method is used to issue the `pin rm` command with an argument that specifies the hash of the file or directory to be unpinned. No output format is specified, so the default output format is used. Again, the `Send` method is used to execute the command with a background context. Overall, the `github.com.ipfs.go-ipfs.commands` package library is used to interact with the IPFS file-sharing system through Go code. It is a useful tool for developers who want to build IPFS applications in Go.