New region tags (#1843)

Author: engelke

error_reporting/api/report_exception.py

@@ -15,6 +15,7 @@
 
 # [START error_reporting]
 # [START error_reporting_quickstart]
+# [START error_reporting_setup_python]
 def simulate_error():
     from google.cloud import error_reporting
 
@@ -24,16 +25,19 @@ def simulate_error():
         raise NameError
     except Exception:
         client.report_exception()
+# [END error_reporting_setup_python]
 # [END error_reporting_quickstart]
 # [END error_reporting]
 
 
 # [START error_reporting_manual]
+# [START error_reporting_setup_python_manual]
 def report_manual_error():
     from google.cloud import error_reporting
 
     client = error_reporting.Client()
     client.report("An error has occurred.")
+# [START error_reporting_setup_python_manual]
 # [END error_reporting_manual]