pandas.api.extensions.ExtensionArray.ravel# ExtensionArray.ravel(order='C')[source]# Return a flattened view on this array. Parameters order{None, ‘C’, ‘F’, ‘A’, ‘K’}, default ‘C’ Returns ExtensionArray Notes Because ExtensionArrays are 1D-only, this is a no-op. The “order” argument is ignored, is for compatibility with NumPy.