[cfr_api] Use the GMPRO API by default.

python/gmpro/json/cfr_api.py

@@ -100,29 +100,29 @@ def optimize_tours(
     host: str | None = None,
     path: str | None = None,
 ) -> cfr_json.OptimizeToursResponse:
-  """Solves request using the Google CFR API.
+  """Solves request using the GMPRO API.
 
   Args:
     request: The request to be solved.
     google_cloud_project: The name of the Google Cloud project used in the API.
     google_cloud_token: The Google Cloud access token used to invoke the API.
     timeout: The solve deadline for the request.
-    host: The host of the CFR API endpoint. When None, the default CFR endpoint
-      is used.
+    host: The host of the GMPRO API endpoint. When None, the default GMPRO
+      endpoint is used.
     path: The path of the optimizeTours API method. When it contains "{project}"
       as a substring, it will be replaced by the name of the project when making
-      the HTTP API call. When None, the default CFR API path for optimizeTours
+      the HTTP API call. When None, the default GMPRO API path for optimizeTours
       is used.
 
   Returns:
     Upon success, returns the response from the server.
 
   Raises:
-    ApiCallError: When the CFR API invocation fails. The exception contains the
-      status, explanation, and the body of the response.
+    ApiCallError: When the GMPRO API invocation fails. The exception contains
+      the status, explanation, and the body of the response.
   """
   if host is None:
-    host = "cloudoptimization.googleapis.com"
+    host = "routeoptimization.googleapis.com"
   if path is None:
     path = "/v1/projects/{project}:optimizeTours"
   path = path.format(project=google_cloud_project)