[Python] Scikit dendrogram: How to disable ouput?

If I run dendrogram from the scikit libary:

from scipy.cluster.hierarchy import linkage, dendrogram
# ...
X = np.asarray(X)
Z = linkage(X, 'single', 'correlation')
plt.figure(figsize=(16,8))
dendrogram(Z, color_threshold=0.7)


I get a ton of print output in my ipython notebook:

{'color_list': ['g',
'r',
'c',
'm',
'y',
...
0.70780175324891315,
0.70172263980890581],
[0.0, 0.54342622932769225, 0.54342622932769225, 0.0],
[0.0, 0.46484932243120658, 0.46484932243120658, 0.0],
...
177,
196,
82,
19,
108]}


How can I disable this? I'm only interested in the actual dendrogram.

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