Update on_success docstring (close #358)

PR #359 
* Update `on_success` docstring

snowplow_tracker/emitter_configuration.py

@@ -39,13 +39,12 @@ def __init__(
         :param batch_size:     The maximum number of queued events before the buffer is flushed. Default is 10.
         :type  batch_size:     int | None
         :param on_success:      Callback executed after every HTTP request in a flush has status code 200
-                                Gets passed the number of events flushed.
+                                Gets passed one argument, an array of dictionaries corresponding to the sent events' payloads
         :type  on_success:      function | None
         :param on_failure:      Callback executed if at least one HTTP request in a flush has status code other than 200
                                 Gets passed two arguments:
                                 1) The number of events which were successfully sent
-                                2) If method is "post": The unsent data in string form;
-                                   If method is "get":  An array of dictionaries corresponding to the unsent events' payloads
+                                2) An array of dictionaries corresponding to the unsent events' payloads
         :type  on_failure:      function | None
         :param byte_limit:      The size event list after reaching which queued events will be flushed
         :type  byte_limit:      int | None
@@ -105,8 +104,7 @@ def on_failure(self) -> Optional[FailureCallback]:
         Callback executed if at least one HTTP request in a flush has status code other than 200
                                 Gets passed two arguments:
                                 1) The number of events which were successfully sent
-                                2) If method is "post": The unsent data in string form;
-                                   If method is "get":  An array of dictionaries corresponding to the unsent events' payloads
+                                2) An array of dictionaries corresponding to the unsent events' payloads
         """
         return self._on_failure
 

snowplow_tracker/emitters.py

@@ -83,13 +83,12 @@ def __init__(
         :param batch_size:  The maximum number of queued events before the buffer is flushed. Default is 10.
         :type  batch_size:  int | None
         :param on_success:  Callback executed after every HTTP request in a flush has status code 200
-                            Gets passed the number of events flushed.
+                            Gets passed one argument, an array of dictionaries corresponding to the sent events' payloads
         :type  on_success:  function | None
         :param on_failure:  Callback executed if at least one HTTP request in a flush has status code other than 200
                             Gets passed two arguments:
                             1) The number of events which were successfully sent
-                            2) If method is "post": The unsent data in string form;
-                               If method is "get":  An array of dictionaries corresponding to the unsent events' payloads
+                            2) An array of dictionaries corresponding to the unsent events' payloads
         :type  on_failure:  function | None
         :param byte_limit:  The size event list after reaching which queued events will be flushed
         :type  byte_limit:  int | None
@@ -463,13 +462,12 @@ def __init__(
         :param batch_size: The maximum number of queued events before the buffer is flushed. Default is 10.
         :type  batch_size: int | None
         :param on_success:  Callback executed after every HTTP request in a flush has status code 200
-                            Gets passed the number of events flushed.
+                            Gets passed one argument, an array of dictionaries corresponding to the sent events' payloads
         :type  on_success:  function | None
         :param on_failure:  Callback executed if at least one HTTP request in a flush has status code other than 200
                             Gets passed two arguments:
                             1) The number of events which were successfully sent
-                            2) If method is "post": The unsent data in string form;
-                               If method is "get":  An array of dictionaries corresponding to the unsent events' payloads
+                            2) An array of dictionaries corresponding to the unsent events' payloads
         :type  on_failure:  function | None
         :param thread_count: Number of worker threads to use for HTTP requests
         :type  thread_count: int