Rename private GvmProtocol methods for handling requests

Make it more obvious that these methods are handling requests and
responses.

Author: bjoernricks

gvm/protocols/_protocol.py

@@ -112,16 +112,16 @@ def send_command(self, cmd: str) -> str:
         string
         """
         return bytes(
-            self._send_command(cmd.encode("utf-8", errors="ignore"))  # type: ignore[arg-type] # it seems mypy on Python < 3.11 can't handle bytes here
+            self._send_request(cmd.encode("utf-8", errors="ignore"))  # type: ignore[arg-type] # it seems mypy on Python < 3.11 can't handle bytes here
         ).decode("utf-8", errors="ignore")
 
     def _transform(self, response: Response) -> T:
         transform = self._transform_callable
         return transform(response)
 
-    def _send_command(self, cmd: Request) -> Response:
+    def _send_request(self, request: Request) -> Response:
         try:
-            send_data = self._protocol.send(cmd)
+            send_data = self._protocol.send(request)
             self._send(send_data)
             response: Optional[Response] = None
             while not response:
@@ -132,5 +132,5 @@ def _send_command(self, cmd: Request) -> Response:
             self.disconnect()
             raise e
 
-    def _send_and_transform_command(self, cmd: Request) -> T:
-        return self._transform(self._send_command(cmd))
+    def _send_request_and_transform_response(self, request: Request) -> T:
+        return self._transform(self._send_request(request))

gvm/protocols/gmp/_gmp.py

@@ -71,7 +71,7 @@ def __init__(
     def determine_remote_gmp_version(self) -> str:
         """Determine the supported GMP version of the remote daemon"""
         self.connect()
-        resp = self._send_command(Version.get_version())
+        resp = self._send_request(Version.get_version())
         self.disconnect()
 
         version_el = resp.xml().find("version")