class ROMLYADDON_OT_add_constant_offset_array_modifier(bpy.types.Operator): bl_idname = 'romlyaddon.add_constant_offset_array_modifier' bl_label = bpy.app ...

Modifiers are automatic operations that affect an object’s geometry in a non-destructive way. With modifiers, you can perform many effects automatically that would otherwise be too tedious to do ...