implement Pipeline.message.write() and Pipeline.timestamp.record()

csst_common/pipeline.py

@@ -266,18 +266,21 @@ class Message:
     def __repr__(self):
         return f"< Message [{self.file_path}] >"
 
-    def write(self, dlist):
+    def write(self, dlist: list[dict]):
+        """Write messages to file."""
         with open(self.file_path, "w+") as f:
             for d in dlist:
                 f.write(self.dict2msg(d) + "\n")
 
     @staticmethod
-    def dict2msg(d):
+    def dict2msg(d: dict):
+        """Convert `dict` to JSON format string."""
         m = json.dumps(d).replace(" ", "")
         return m
 
     @staticmethod
-    def msg2dict(m):
+    def msg2dict(m: str):
+        """Convert JSON format string to `dict`."""
         d = json.loads(m)
         return d
 
@@ -322,8 +325,8 @@ class Timestamp:
         with open(self.file_path, "w") as file:
             file.truncate(0)
 
-    def touch(self):
-        """Write a time stamp."""
+    def record(self):
+        """Record a time stamp."""
         with open(self.file_path, "a+") as f:
             f.write(f"{Time.now().isot}+00:00\n")