title: Get bin width used for seaborn plot
body: <p>How do I find out what bin width was used when doing a distplot in Seaborn? I have two datasets I would like to share bin widhts, but don't know how to return the default value used for the first dataset. for something like the simple example below, how would I find out the bin width used?</p>
  
  <pre><code>import nump as np
  import seaborn as sns
  f, axs = plt.subplots(1,1)
  distribution=np.random.rand(1000)
  sns.distplot(distribution, hist=True , kde_kws={"shade": True},ax=axs)
  </code></pre>