tugboat.Methods.containers.Container
https://docs.docker.com/reference/api/docker_remote_api_v1.15/#get-container-logs
a future of unit apply a function, f, to each chunk of the streamed response
a function that takes a function to apply to each chunk of a response and produces a handler for the request's response
https://docs.docker.com/reference/api/docker_remote_api_v1.15/#get-container-logs