The MeshSet class represents a container that allows to collect a set of Meshes, where every Mesh corresponds to a layer of MeshLab. Every mesh has an unique ID that identifies it inside the MeshSet. From the MeshSet class, you can apply all the filters of MeshLab by calling the :pypmeshlab.MeshSet.apply_filter method.
In every non-empty MeshSet, there is a current mesh, that can be accessed using the method :pypmeshlab.MeshSet.current_mesh. Sometimes, filters change the current mesh when applied, setting it to their output. The behaviour is always the same of MeshLab.
pmeshlab.MeshSet