medium: Terraform Optional Attributes and Defaults - variable object >=1.3.0

variables.tf

variable "lambdas" {
  description = "Map of the Lambdas"
  type = map(object({
    lambda_name                  = string
    lambda_entrypoint            = string
    timeout                      = optional(number, 900)
    lambda_runtime               = optional(string, "python3.7")
    lambda_memory_size           = optional(number, 256)
  }))
}