ENH: define what to cover better

.coveragerc

 # .coveragerc to control coverage.py
 [run]
-branch = True
+# branch = True  # statement coverage instead of branch coverage is sufficient right now
 
 [report]
 # Regexes for lines to exclude from consideration
@@ -8,6 +8,10 @@ exclude_lines =
     # Have to re-enable the standard pragma
     pragma: no cover
 
+	if __name__ == .__main__.:
+	@numba.njit
+	@njit
+	def __repr__
     # Don't complain if tests don't hit defensive assertion code:
     raise AssertionError
     raise NotImplementedError