Fixed database typo and removed unnecessary class identifier.

venv/Lib/site-packages/skimage/future/graph/__init__.py

@@ -0,0 +1,13 @@
+from .graph_cut import cut_threshold, cut_normalized
+from .rag import rag_mean_color, RAG, show_rag, rag_boundary
+from .graph_merge import merge_hierarchical
+ncut = cut_normalized
+
+__all__ = ['rag_mean_color',
+           'cut_threshold',
+           'cut_normalized',
+           'ncut',
+           'show_rag',
+           'merge_hierarchical',
+           'rag_boundary',
+           'RAG']