code: func (iamRes *IAMBuilder) ForResource() *IAMResourceBuilder {
  	return &IAMResourceBuilder{
  		builder:       iamRes,
  		resourceParts: make([]gocf.Stringable, 0),
  	}
  }
docs: // ForResource returns the IAMPrivilegeBuilder instance
  // which can be finalized into an IAMRolePrivilege