docstr: If value is `snap` (the default), the node arrangement is
  assisted by automatic snapping of elements to preserve space
  between nodes specified via `nodepad`. If value is
  `perpendicular`, the nodes can only move along a line
  perpendicular to the flow. If value is `freeform`, the nodes
  can freely move on the plane. If value is `fixed`, the nodes
  are stationary.
  
  The 'arrangement' property is an enumeration that may be specified as:
    - One of the following enumeration values:
          ['snap', 'perpendicular', 'freeform', 'fixed']
  
  Returns
  -------
  Any
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code: def arrangement(self):
      """
      If value is `snap` (the default), the node arrangement is
      assisted by automatic snapping of elements to preserve space
      between nodes specified via `nodepad`. If value is
      `perpendicular`, the nodes can only move along a line
      perpendicular to the flow. If value is `freeform`, the nodes
      can freely move on the plane. If value is `fixed`, the nodes
      are stationary.
  
      The 'arrangement' property is an enumeration that may be specified as:
        - One of the following enumeration values:
              ['snap', 'perpendicular', 'freeform', 'fixed']
  
      Returns
      -------
      Any
      """
      return self["arrangement"]
  
imports: from plotly.basedatatypes import BaseTraceType
  import copy
label_desc: Use image node_id 1 for calling the Sankey obj's underlying member method code with example usage: obj.arrangement() and returns: self