Enable ipfs/go-log in libp2p-go

How can I turn on the log messages throughout the go-libp2p codebase? It seems mostly ipfs/go-log is used but I don’t understand how to enable/modify the log levels.

You can export the environment variable IPFS_LOGGING.

For instance, to see info and up do IPFS_LOGGING=info.

If you want to get inundated (but it helps with debugging), do IPFS_LOGGING=debug.

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