[fix] Add and fix docstrings in ascii armor class

duniterpy/key/ascii_armor.py

@@ -131,6 +131,12 @@ class AsciiArmor:
 
     @staticmethod
     def _remove_trailing_spaces(text: str) -> str:
+        """
+        Remove trailing spaces and tabs
+
+        :param text: Text to clean up
+        :return:
+        """
         clean_text = str()
 
         for line in text.splitlines(True):
@@ -141,6 +147,12 @@ class AsciiArmor:
 
     @staticmethod
     def _dash_escape_text(text: str) -> str:
+        """
+        Add dash '-' (0x2D) and space ' ' (0x20) as prefix on each line
+
+        :param text: Text to dash-escape
+        :return:
+        """
         dash_escaped_text = str()
 
         for line in text.splitlines(True):
@@ -151,6 +163,12 @@ class AsciiArmor:
 
     @staticmethod
     def _parse_dash_escaped_line(dash_escaped_line: str) -> str:
+        """
+        Parse a dash-escaped text line
+
+        :param dash_escaped_line: Dash escaped text line
+        :return:
+        """
         text = str()
         regex_dash_escape_prefix = compile('^' + DASH_ESCAPE_PREFIX)
         # if prefixed by a dash escape prefix...
@@ -224,10 +242,14 @@ class AsciiArmor:
                     {
                         'fields': {},
                         'content': str,
+
                      },
+
                 'signatures': [
                     {'pubkey': str, 'valid': bool, fields: {}}
+
                 ]
+
             }
 
         :param ascii_armor_message: The Ascii Armor Message Block including BEGIN and END headers