Hugoberry

(json) =>
let
//List the expandable columns
    expandableColumns = (_) => List.Accumulate(
                           	Table.ColumnNames(_),
                                {},
                                (s,c)=>s&(if Type.Is(Value.Type(Record.Field(_{0},c)), type record)
					or Type.Is(Value.Type(Record.Field(_{0},c)), type list)
					then {c} 
					else {})