added yard doc for methods

lib/event_source/protocols/amqp/bunny_queue_proxy.rb

@@ -151,6 +151,14 @@ def on_receive_message(
           subscriber = nil
         end
 
+        # Decodes the given payload based on the `contentEncoding` specified in the AsyncAPI *_subscribe.yml message bindings.
+        #
+        # For example, if `contentEncoding` is set to `application/zlib`, the payload will be decompressed using zlib.
+        # If no `contentEncoding` is provided, the payload will be returned unchanged.
+        #
+        # @param payload [String] The payload to be decoded.
+        # @return [String] The decoded payload, or the original payload if no encoding is specified.
+        # @raise [EventSource::Error::PayloadDecodeError] if the decoding process fails.
         def decode_payload(payload)
           async_api_subscribe_operation = @async_api_channel_item.subscribe
           return payload unless async_api_subscribe_operation.message

lib/event_source/publish_operation.rb

@@ -36,6 +36,18 @@ def call(payload, options = {})
       )
     end
 
+    # Encodes the given payload based on the `contentEncoding` specified in the AsyncAPI *_publish.yml message bindings.
+    #
+    # For example, if `contentEncoding` is set to `application/zlib`, the payload will be compressed using zlib.
+    # If no `contentEncoding` is provided, the payload will be returned as-is without modification.
+    #
+    # Note:
+    # - Encoding is not needed for the HTTP protocol, as encoding is handled at the server level.
+    # - For other protocols like AMQP, encoding is supported to ensure proper message transmission.
+    #
+    # @param payload [String, Hash] The payload to be encoded.
+    # @return [String] The encoded payload, or the original payload if no encoding is specified.
+    # @raise [EventSource::Error::PayloadEncodeError] if the encoding process fails.
     def encode_payload(payload)
       return payload unless @async_api_publish_operation.message