Add InvalidProperty test and sync with GitHub

PiperOrigin-RevId: 297186473
Change-Id: Id23c439ce057b9bc1c7e7c9fd02dd3fb3f3d6a49

Author: dbieber

docs/guide.md

@@ -595,7 +595,7 @@ $ python example.py [1,2]
 list
 $ python example.py True
 bool
-$ python example.py {name:David}
+$ python example.py {name: David}
 dict
 ```
 

fire/test_components.py

@@ -499,6 +499,7 @@ def set(self, value):
     self.pixels[self._row][self._col] = value
     return self
 
+
 class DefaultMethod(object):
 
   def double(self, number):
@@ -508,3 +509,4 @@ def __getattr__(self, name):
     def _missing():
       return "Undefined Function"
     return _missing
+