It means all the connected loads to the load terminals of gfci are protected. To wire a gfci circuit breaker see this link and wire a gfci switch combo at this link.

Diagram Based Double Duplex Receptacle Wiring Diagram
Wiring diagram for a gfci outlet. Refer to the diagram above about wiring gfci receptacles for additional help. Wiring a gfci outlet with combo switch outlet receptacle light switch. Electrical wiring parts and materials. Electrical codes and inspections. Wiring a gfci outlet and a light switch. Wiring for a switch and gfci receptacle in the same box is also shown.
In this diagram the switch built into the combo device is wired to control the gfci outlet itself. The source hot wire is spliced with one of the switch wires and the other switch wire is connected to the hot line terminal on the device. Wiring diagram for a switched gfci combo outlet. Loosen the silver and brass terminal screws on the line side of the outlet. The source neutral is connected the line neutral terminal. In the gfci mainly two wires connect as also shown in a diagram the current flowing from the source and coming back are some due to current laws.
If more than 1 black and 1 white conductor are in the electrical box also loosen the load side silver and brass terminal screws. Identify the gfci outlet circuit turn it off and tag it with a note before working with the wiring. Gfci outlet wiring diagram. Electrical parts and materials for gfci outlet wiring projects should be approved for the specific project and compliant with local and national electrical codes. This diagram illustrates wiring a gfci receptacle and light switch in the same outlet box a common arrangement in a bathroom with limited space. So gfci designed as checking the difference between the current leaving and returning through current transformer of the gfci to protect device exceeds 5ma.
In this gfci outlet wiring and installation diagram the combo switch outlet spst single way switch and ordinary outlet is connected to the load side of gfci.