code: def list_policies(region=None, key=None, keyid=None, profile=None):
      '''
      List policies.
  
      CLI Example:
  
      .. code-block:: bash
  
          salt myminion boto_iam.list_policies
      '''
      conn = _get_conn(region=region, key=key, keyid=keyid, profile=profile)
  
      try:
          policies = []
          for ret in __utils__['boto.paged_call'](conn.list_policies):
              policies.append(ret.get('list_policies_response', {}).get('list_policies_result', {}).get('policies'))
          return policies
      except boto.exception.BotoServerError as e:
          log.debug(e)
          msg = 'Failed to list policy versions.'
          log.error(msg)
          return [f list_policies(region=None, key=None, keyid=None, profile=None):
      '''
      List policies.
  
      CLI Example:
  
      .. code-block:: bash
  
          salt myminion boto_iam.list_policies
      '''
      conn = _get_conn(region=region, key=key, keyid=keyid, profile=profile)
  
      try:
          policies = []
          for ret in __utils__['boto.paged_call'](conn.list_policies):
              policies.append(ret.get('list_policies_response', {}).get('list_policies_result', {}).get('policies'))
          return policies
      except boto.exception.BotoServerError as e:
          log.debug(e)
          msg = 'Failed to list policy versions.'
          log.error(msg)
          return []
docs: List policies.
  
      CLI Example:
  
      .. code-block:: bash
  
          salt myminion boto_iam.list_policies