Remove service helper (3) (#16879)

* Update duckdns

* Update google_assistant

* Update group

* Update homematic

* Update image_processing

* Update input_boolean

* Update input_number

* Update input_select

* Update input_text

tests/components/group/common.py

@@ -0,0 +1,16 @@
+"""Collection of helper methods.
+
+All containing methods are legacy helpers that should not be used by new
+components. Instead call the service directly.
+"""
+from homeassistant.components.group import ATTR_VISIBLE, DOMAIN, \
+    SERVICE_SET_VISIBILITY
+from homeassistant.const import ATTR_ENTITY_ID
+from homeassistant.loader import bind_hass
+
+
+@bind_hass
+def set_visibility(hass, entity_id=None, visible=True):
+    """Hide or shows a group."""
+    data = {ATTR_ENTITY_ID: entity_id, ATTR_VISIBLE: visible}
+    hass.services.call(DOMAIN, SERVICE_SET_VISIBILITY, data)