feat(reffoilchanger): Added function to get all foils by name

debye_bec/devices/reffoilchanger.py

@@ -37,7 +37,7 @@ class OpMode(int, enum.Enum):
 class Reffoilchanger(PSIDeviceBase):
     """Class for the ES2 Reference Foil Changer"""
 
-    USER_ACCESS = ["insert"]
+    USER_ACCESS = ["get_all_foils", "insert"]
 
     inserted = Cpt(
         EpicsSignalRO, suffix="ES2-REF:TRY-FilterInserted", kind="config", doc="Inserted indicator"
@@ -53,13 +53,21 @@ class Reffoilchanger(PSIDeviceBase):
         EpicsSignal, suffix="ES2-REF:SELN-FilterState-ENUM_RBV", kind="config", doc="Status"
     )
     status_string = Cpt(
-        EpicsSignal, suffix="ES2-REF:SELN-FilterState-ENUM_RBV", kind="config", doc="Status", string=True
+        EpicsSignal,
+        suffix="ES2-REF:SELN-FilterState-ENUM_RBV",
+        kind="config",
+        doc="Status",
+        string=True,
     )
     op_mode = Cpt(
         EpicsSignalWithRBV, suffix="ES2-REF:SELN-OpMode-ENUM", kind="config", doc="Status"
     )
     op_mode_string = Cpt(
-        EpicsSignalWithRBV, suffix="ES2-REF:SELN-OpMode-ENUM", kind="config", doc="Status", string=True
+        EpicsSignalWithRBV,
+        suffix="ES2-REF:SELN-OpMode-ENUM",
+        kind="config",
+        doc="Status",
+        string=True,
     )
     ref_set = Cpt(EpicsSignal, suffix="ES2-REF:SELN-SET", kind="config", doc="Requested reference")
     ref_rb = Cpt(
@@ -149,6 +157,13 @@ class Reffoilchanger(PSIDeviceBase):
             self.foil38,
         ]
 
+    def get_all_foils(self) -> list[str]:
+        """Returns a list of strings of all available foils"""
+        foils_list = []
+        for foil in self.foils:
+            foils_list.append(foil.get())
+        return foils_list
+
     def insert(self, ref: str, wait: bool = False) -> DeviceStatus:
         """Insert a reference