Terraform，如何在地图中生成键/值？

Terraform，我正在尝试生成键/值对

name1 - net 1-1
name2 - net 1-2
name3 - net 1-3
name4 - net 2-1

但我有一个错误

name => flatten([for i in range(var.leaf_count): [for j in range(var.compute_count):"subnet-Leaf-${i+1}-compute-${j+1}"]])

A reference to a resource type must be followed by at least one attribute
access, specifying the resource name.

如何生成键值对

name => flatten([for i in range(var.leaf_count): [for j in range(var.compute_count):"subnet-Leaf-${i+1}-compute-${j+1}"]])

A reference to a resource type must be followed by at least one attribute
access, specifying the resource name.