How to get "bpy.ops.mesh.select_more()" working for a bmesh? When I select some meshes of my object by hand or with a script, the selection of some meshes "fades out". With "Select - Select More/Less - More) I can select these mesehs, too. But with a script I created a bmes to select my meshes and bpy.ops.mesh.select_more() leads to an error: 

RuntimeError: Operator bpy.ops.object.select_more.poll() failed, context is incorrect


Is there an equivalent for this function with a bmesh?
I just needed to update the bmesh with some more parameters:

bmesh.update_edit_mesh(me, False, False)


See the reference:
https://docs.blender.org/api/2.79/bmesh.html?highlight=update_edit_mesh#bmesh.update_edit_mesh