NewFileClient returns the new instance of FileClient for the given `io.ReadCloser`.

HTTP header keys.

Client contains fields necessary to query a Loki instance.

FileClient is a type of LogCLI client that do LogQL on log lines from the given file directly, instead get log lines from Loki servers.

Client contains all the methods to query a Loki instance, it's an interface to allow multiple implementations.

Tripperware can wrap a roundtripper.