creates and registers a new whatsapp message template for approval.
Args:
    template_name (str): name of the whatsapp message template, It only accepts a single word without no special characters except underscores
    language (str): language of the whatsapp message template (default is "en")
    category (str): category of the whatsapp message template (default is "MARKETING"), other possible values are "UTILITY", "AUTHENTICATION"
    message_content_components (dict): the message content that needs to be sent. It needs to be structured like the below example, 
    components are required to have BODY component at least, like this: {"type": "BODY", "text": "lorem body text"}, BODY component is for the simple text.
    All other components are optional. 
    HEADER component can have any of the below format, but only one format at a time can be used.: TEXT(the header component with TEXT needs to be like this
    {
    "type": "HEADER",
    "format": "TEXT",
    "text": "lorem header text"
    }
    ), VIDEO(the header component with VIDEO needs to be like this
    {
     "type":"HEADER",
     "format":"VIDEO",
     "example":{
        "header_handle":[
           "https://sample_video_url.jpg"
        ]
     }
    }
    )
    , IMAGE(the header component with IMAGE needs to be like this 
    {
     "type":"HEADER",
     "format":"IMAGE",
     "example":{
        "header_handle":[
           "https://sample_image_url.jpg"
        ]
     }
    }),
   DOCUMENT (the header component with DOCUMENT needs to be like this 
    {
     "type":"HEADER",
     "format":"DOCUMENT",
     "example":{
        "header_handle":[
           "https://sample_document_url"
        ]
     }
  }),
    message_content_components value with all other type of components is mentioned below.
        [
                {
                    "type": "HEADER",
                    "format": "TEXT",
                    "text": "lorem header text"
                },
                {
                    "type": "BODY",
                    "text": "lorem body text"
                },
                {
                    "type": "FOOTER",
                    "text": "lorem footer text"
                },
                {
                    "type": "BUTTONS",
                    "buttons": [
                        {
                            "type": "QUICK_REPLY",
                            "text": "lorem reply bt"
                        },
                        {
                          "type": "URL",
                          "text": "cta",
                          "url": "https:sample.in"
                        },
                        {
                          "type": "PHONE_NUMBER",
                          "text": "call ",
                          "phone_number": "IN328892398"
                        }
                    ]
                }
            ]
    Buttons need to follow order of first QUICK_REPLY, then URL, and then PHONE_NUMBER.