public virtual async Task RemoveRoleFromOrganizationUnitAsync(IdentityRole role, OrganizationUnit ou)
{
var entity = await _organizationUnitRoleRepository.FindByOrganizationUnitIdAndRoleIdAsync(ou.Id, role.Id);
if (entity != null)
{
await _organizationUnitRoleRepository.DeleteAsync(entity);
}
}
