# Functions
Client returns a Docker client for the given Docker machine.
ErrDockerMachineExec is an error that occurred while executing the docker-machine command.
Exists returns true if a Docker machine exists.
IP returns the IP address of the Docker machine.
IsAvailable returns true if the docker-machine executable can be found in the PATH.
IsRunning returns true if a Docker machine is running.
NewBuilder creates a Docker machine Builder object used to create a Docker machine.
Start starts up an existing Docker machine.
# Variables
ErrDockerMachineExists is returned if a Docker machine you are trying to create already exists.
ErrDockerMachineNotAvailable is returned if the docker-machine command is not available in the PATH.