How can I display only one camera view option in a custom pie menu? pie.operator_enum("VIEW3D_OT_viewnumpad", "type") - this gives list of views.
 I want only one "camera" button , not all from the enum (front, left, right etc.). How can I do it? 

bpy.ops.view3d.viewnumpad(type='CAMERA') - this isn't right.
pie.operator("VIEW3D_OT_viewnumpad").type='CAMERA' - this is right