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       deleteAttrPattern([allPatterns=boolean], [patternName=string], [patternType=string])  
Note: Strings representing object names and arguments must be separated by commas. This is not depicted in the synopsis.
      deleteAttrPattern is undoable, NOT queryable, and NOT editable.
      After a while the list of attribute patterns could become cluttered.
This command provides a way to remove patterns from memory so that only
the ones of interest will show.
	  
      
      | string | Name(s) of deleted pattern(s) | 
      attribute, pattern
      addAttr, addExtension, applyAttrPattern, createAttrPatterns, listAttrPatterns
      
    
      allPatterns, patternName, patternType
      
		
		  | Long name (short name) | Argument types | Properties | 
		
	
	  | allPatterns(all) | boolean |   | 
	
	  | 
	      
		|  | If specified it means delete all known attribute patterns. |  | 
	
	  | patternName(pn) | string |   | 
	
	  | 
	      
		|  | The name of the pattern to be deleted. |  | 
	
	  | patternType(pt) | string |   | 
	
	  | 
	      
		|  | Delete all patterns of the given type. |  | 
      
      
		
		  
			|  Flag can appear in Create mode of command |  Flag can appear in Edit mode of command | 
		  
			|  Flag can appear in Query mode of command |  Flag can have multiple arguments, passed either as a tuple or a list. | 
		
import maya.cmds as cmds
import maya.cmds as cmds
cmds.deleteAttrPattern( patternType="xmlPattern" )
// Result: [myXMLPattern, myOtherXMLPattern] //
cmds.deleteAttrPattern( patternName="myJSONPattern" )
// Result: myJSONPattern //