docs: def get_datasource(name, orgname=None, profile='grafana'):
      '''
      Show a single datasource in an organisation.
  
      name
          Name of the datasource.
  
      orgname
          Name of the organization.
  
      profile
          Configuration profile used to connect to the Grafana instance.
          Default is 'grafana'.
  
      CLI Example:
  
      .. code-block:: bash
  
          salt '*' grafana4.get_datasource <name> <orgname>
      '''
      data = get_datasources(orgname=orgname, profile=profile)
      for datasource in data:
          if datasource['name'] == name:
              return datasource
      return None