code: func (p *PoliciesClient) AttachmentsList(ctx context.Context, orgID, ownerID, policyID *identity.ID) ([]envelope.PolicyAttachment, error) {
  	v := &url.Values{}
  	if orgID != nil {
  		v.Set("org_id", orgID.String())
  	}
  	if ownerID != nil {
  		v.Set("owner_id", ownerID.String())
  	}
  	if policyID != nil {
  		v.Set("policy_id", policyID.String())
  	}
  
  	attachments := []envelope.PolicyAttachment{}
  	err := p.client.RoundTrip(ctx, "GET", "/policy-attachments", v, nil, &attachments)
  	return attachments, err
  }
docs: // AttachmentsList retrieves all policy attachments for an org