code: func GetCredentialsEventType(roleType string) string {
  	switch roleType {
  	case credentials.ApplicationRoleType:
  		return getCredentialsEventType
  	case credentials.ExecutionRoleType:
  		return getCredentialsTaskExecutionEventType
  	default:
  		return getCredentialsInvalidRoleTypeEventType
  	}
  }
docs: // GetCredentialsEventType is the type for a GetCredentials request