Create multiple scalable role_assignments in Terraform

Question

i have been tasked to write the below code with minimal lines, rather having 3 resource blocks can this be done in a single block using for_each function. It should be scalable in near future when we add additional role assignements

resource "azurerm_role_assignment" "role_assignment_01" {
  scope                = data.azurerm_subscription.primary.id
  role_definition_name = "Reader"
  principal_id         = data.azurerm_client_config.example.object_id
}

resource "azurerm_role_assignment" "role_assignment_02" {
  scope                = data.azurerm_subscription.primary.id
  role_definition_name = "Contributor"
  principal_id         = data.azurerm_client_config.example.object_id
}

resource "azurerm_role_assignment" "role_assignment_03" {
  scope                = data.azurerm_subscription.primary.id
  role_definition_name = "Network Contributor"
  principal_id         = data.azurerm_client_config.example.object_id
}