First commit.

README.md

@@ -1,3 +1,18 @@
 ---
 license: mit
 ---
+## Description
+
+Replies with a fixed message.
+
+## Configuration parameters
+
+fixed_reply (String): The string specifying the reply. Required parameter.
+
+## Input interface
+
+The Flow does not expect any input. 
+
+## Output interface
+
+fixed_reply (String): The string specifying the reply.

__init__.py

@@ -0,0 +1 @@
+from .fixed_reply import FixedReplyFlow

fixed_reply.py

@@ -0,0 +1,21 @@
+from typing import Dict, Any
+
+from flows.base_flows import AtomicFlow
+
+
+class FixedReplyFlow(AtomicFlow):
+    REQUIRED_KEYS_CONFIG = ["fixed_reply"]
+
+    __default_flow_config = {
+        "input_interface": [],
+        "output_interface": ["fixed_reply"],
+    }
+
+    def __init__(self, **kwargs):
+        super().__init__(**kwargs)
+
+    def run(self,
+            input_data: Dict[str, Any]) -> Dict[str, Any]:
+
+        return {"fixed_reply": self.flow_config["fixed_reply"]}
+