Type Alias Minimize 

pub type Minimize = (bool, bool, bool);

Minimize tuple

Dictates which axis (x,y,z) the packer tries to minimize

Example

// x,    y,     z
(true, false, true)

Will minimize the width (x) of the container,
and the length (z) of the container
However, the height (y) of the container will be specified via container_size in PackerInstance::new()