This part is a complete copy-paste, telling you about this part is a complete copy-paste, only to prove that this part is definitely copied before pasted.

This part is a complete copy-paste, telling you about this part might be a complete copy-paste, only to prove that this part is inevitably copied before pasted.

This part is a complete copy-paste, might not telling you about this part is a complete copy-paste, only to prove that this part is possibly copied before pasted.

This part is a non-complete copy-paste, informing you about this is the part that is partially a copy-paste, only to disprove that this part is miscopied before pasted.