code: def shewhart(self, data: ['SASdata', str] = None,
                   boxchart: str = None,
                   cchart: str = None,
                   irchart: str = None,
                   mchart: str = None,
                   mrchart: str = None,
                   npchart: str = None,
                   pchart: str = None,
                   rchart: str = None,
                   schart: str = None,
                   uchart: str = None,
                   xrchart: str = None,
                   xschart: str = None,
                   procopts: str = None,
                   stmtpassthrough: str = None,
                   **kwargs: dict) -> 'SASresults':
          
docs: Python method to call the SHEWHART procedure
  
          Documentation link:
          https://go.documentation.sas.com/?cdcId=pgmsascdc&cdcVersion=9.4_3.4&docsetId=qcug&docsetTarget=qcug_shewhart_toc.htm&locale=en
  
          :param data: SASdata object or string. This parameter is required.
          :parm boxchart: The boxchart variable can only be a string type.
          :parm cchart: The cchart variable can only be a string type.
          :parm irchart: The irchart variable can only be a string type.
          :parm mchart: The mchart variable can only be a string type.
          :parm mrchart: The mrchart variable can only be a string type.
          :parm npchart: The npchart variable can only be a string type.
          :parm pchart: The pchart variable can only be a string type.
          :parm rchart: The rchart variable can only be a string type.
          :parm schart: The schart variable can only be a string type.
          :parm uchart: The uchart variable can only be a string type.
          :parm xrchart: The xrchart variable can only be a string type.
          :parm xschart: The xschart variable can only be a string type.
          :parm procopts: The procopts variable is a generic option available for advanced use. It can only be a string type.
          :parm stmtpassthrough: The stmtpassthrough variable is a generic option available for advanced use. It can only be a string type.
          :return: SAS Result Object