Merge branch '104-feat-provide-serialization-for-textgridconfig' into 'main'

Resolve "feat: provide serialization for TextgridConfig"

Closes #104

See merge request !80

src/tgclients/config.py

@@ -4,6 +4,7 @@
 
 """Variable config options with defaults to be used with the TextGrid clients library."""
 
+import json
 import logging
 from typing import Optional
 
@@ -163,3 +164,26 @@ class TextgridConfig:
             value (float): the timeout
         """
         self._http_timeout = value
+
+    def _to_dict(self):
+        return {
+            'host': self.host,
+            'auth_wsdl': self.auth_wsdl,
+            'auth_address': self.auth_address,
+            'extra_crud_wsdl': self.extra_crud_wsdl,
+            'extra_crud_address': self.extra_crud_address,
+            'search': self.search,
+            'search_public': self.search_public,
+            'crud': self.crud,
+            'crud_public': self.crud_public,
+            'aggregator': self.aggregator,
+            'publish': self.publish,
+            'http_timeout': self.http_timeout,
+        }
+
+    def _to_json(self):
+        return json.dumps(self._to_dict())
+
+    def __str__(self):
+        """Return a string representation of the TextgridConfig object."""
+        return self._to_json()