public com.google.bigtable.v2.FamilyOrBuilder getFamiliesOrBuilder(int index) {
    return families_.get(index);
  }
public com . google . bigtable . v2 . FamilyOrBuilder getFamiliesOrBuilder ( int index ) { return families_ . get ( index ) ; }
<pre>
May be empty, but only if the entire row is empty.
The mutual ordering of column families is not specified.
</pre>

<code>repeated .google.bigtable.v2.Family families = 2;</code>