               precedence: 0
               contents: 'arg'
             }
-            #{
-            #  type: 'mutationButton'
-            #  expand: [
-            #    ', '
-            #    {
-            #      type: 'socket'
-            #      precedence: 0
-            #      contents: 'arg'
-            #    }
-            #  0
-            #  ]
-            #}
             ') ->'
             {
               type: 'indent'

          type: 'block'
          valueByDefault: true
          precedence: 32
          color: '#26cf3c'
          children: [
            '{'
            {

        ice.parseObj {
          type: 'block'
          valueByDefault: true
          color: 'value'
          precedence: 32
          children: [
            '['
