Make functions in private module public

The module itself is private, but the functions are used outside the
module, so they should be public.

Signed-off-by: Leandro Lucarella <[email protected]>

Author: llucax

src/frequenz/client/microgrid/_client.py

@@ -35,9 +35,9 @@
 from ._component import (
     Component,
     ComponentCategory,
-    _component_category_from_protobuf,
-    _component_metadata_from_protobuf,
-    _component_type_from_protobuf,
+    component_category_from_protobuf,
+    component_metadata_from_protobuf,
+    component_type_from_protobuf,
 )
 from ._component_data import (
     BatteryData,
@@ -132,9 +132,9 @@ async def components(self) -> Iterable[Component]:
         result: Iterable[Component] = map(
             lambda c: Component(
                 c.id,
-                _component_category_from_protobuf(c.category),
-                _component_type_from_protobuf(c.category, c.inverter),
-                _component_metadata_from_protobuf(c.category, c.grid),
+                component_category_from_protobuf(c.category),
+                component_type_from_protobuf(c.category, c.inverter),
+                component_metadata_from_protobuf(c.category, c.grid),
             ),
             components_only,
         )

src/frequenz/client/microgrid/_component.py

@@ -35,7 +35,7 @@ class InverterType(ComponentType):
     """Hybrid inverter."""
 
 
-def _component_type_from_protobuf(
+def component_type_from_protobuf(
     component_category: PbComponentCategory.ValueType,
     component_metadata: PbInverterMetadata,
 ) -> ComponentType | None:
@@ -87,7 +87,7 @@ class ComponentCategory(Enum):
     """CHP component."""
 
 
-def _component_category_from_protobuf(
+def component_category_from_protobuf(
     component_category: PbComponentCategory.ValueType,
 ) -> ComponentCategory:
     """Convert a protobuf ComponentCategory message to ComponentCategory enum.
@@ -135,10 +135,21 @@ class GridMetadata(ComponentMetadata):
     """Metadata for a grid connection point."""
 
 
-def _component_metadata_from_protobuf(
+def component_metadata_from_protobuf(
     component_category: PbComponentCategory.ValueType,
     component_metadata: PbGridMetadata,
 ) -> GridMetadata | None:
+    """Convert a protobuf GridMetadata message to GridMetadata class.
+
+    For internal-only use by the `microgrid` package.
+
+    Args:
+        component_category: category the type belongs to.
+        component_metadata: protobuf metadata to fetch type from.
+
+    Returns:
+        GridMetadata instance corresponding to the protobuf message.
+    """
     if component_category == PbComponentCategory.COMPONENT_CATEGORY_GRID:
         max_current = component_metadata.rated_fuse_current
         fuse = Fuse(max_current)