Method to get the list of templates.
https://api.wbsrvc.com/TemplateV2/GetTemplates/
POST
| user_key Required |
User Key of the user who initiates the call. Type: string |
| category_id Required |
ID of the category. Type: integer |
| limit Optional |
Limit the number of resulting templates. Type: integer |
| offset Optional |
Offset the beginning of resulting templates. Type: integer |
| count Optional |
Return the number of templates. Type: string - possible value 'true', 'false' |
| client_id Optional |
Client ID of the client in which the template is created. Type: integer |