docstr: Used for freeform grids, where some axes may be shared across
  subplots but others are not. Each entry should be a cartesian
  subplot id, like "xy" or "x3y2", or "" to leave that cell
  empty. You may reuse x axes within the same column, and y axes
  within the same row. Non-cartesian subplots and traces that
  support `domain` can place themselves in this grid separately
  using the `gridcell` attribute.
  
  The 'subplots' property is an info array that may be specified as:
  * a 2D list where:
    The 'subplots[i][j]' property is an enumeration that may be specified as:
    - One of the following enumeration values:
          ['']
    - A string that matches one of the following regular expressions:
          ['^x([2-9]|[1-9][0-9]+)?y([2-9]|[1-9][0-9]+)?$']
  
  Returns
  -------
  list
docstr_tok: ["Used","for","freeform","grids",",","where","some","axes","may","be","shared","across","subplots","but","others","are","not",".","Each","entry","should","be","a","cartesian","subplot","id",",","like","``","xy","''","or","``","x3y2","''",",","or","``","''","to","leave","that","cell","empty",".","You","may","reuse","x","axes","within","the","same","column",",","and","y","axes","within","the","same","row",".","Non-cartesian","subplots","and","traces","that","support","`","domain","`","can","place","themselves","in","this","grid","separately","using","the","`","gridcell","`","attribute",".","The","'subplots","'","property","is","an","info","array","that","may","be","specified","as",":","*","a","2D","list","where",":","The","'subplots","[","i","]","[","j","]","'","property","is","an","enumeration","that","may","be","specified","as",":","-","One","of","the","following","enumeration","values",":","[","``","]","-","A","string","that","matches","one","of","the","following","regular","expressions",":","[","'^x","(","[","2-9","]","|","[","1-9","]","[","0-9","]","+",")","?","y","(","[","2-9","]","|","[","1-9","]","[","0-9","]","+",")","?","$","'","]","Returns","--","--","--","-","list"]
code: def subplots(self):
      """
      Used for freeform grids, where some axes may be shared across
      subplots but others are not. Each entry should be a cartesian
      subplot id, like "xy" or "x3y2", or "" to leave that cell
      empty. You may reuse x axes within the same column, and y axes
      within the same row. Non-cartesian subplots and traces that
      support `domain` can place themselves in this grid separately
      using the `gridcell` attribute.
  
      The 'subplots' property is an info array that may be specified as:
      * a 2D list where:
        The 'subplots[i][j]' property is an enumeration that may be specified as:
        - One of the following enumeration values:
              ['']
        - A string that matches one of the following regular expressions:
              ['^x([2-9]|[1-9][0-9]+)?y([2-9]|[1-9][0-9]+)?$']
  
      Returns
      -------
      list
      """
      return self["subplots"]
  
imports: from plotly.basedatatypes import BaseLayoutHierarchyType
  import copy
label_desc: Use image node_id 11 for calling the Grid obj's underlying member method code with example usage: obj.subplots() and returns: self