Promise resolving to ElastiCacheInfo object with families, nodeTypes, and categories arrays
import { getElastiCacheInfo } from 'aws-instance-info/async'
const info = await getElastiCacheInfo()
console.log(info.families) // ['M5', 'R6g', 'T3', ...]
console.log(info.nodeTypes) // ['cache.m5.large', 'cache.r6g.xlarge', ...]
console.log(info.categories) // ['general_purpose', 'memory_optimized', ...]
Get the ElastiCache info manifest containing lists of all families and node types. Triggers the initial bulk fetch on first call; subsequent calls use cache.