method Command.prototype.parseEnvVarsimport { Command } from "https://dotland.deno.dev/x/lume@v1.13.2/deps/cliffy.ts"; parseEnvVars(ctx: ParseContext,envVars: Array<EnvVar>,validate?,): Promise<void>Read and validate environment variables. Parametersctx: ParseContextParse context. envVars: Array<EnvVar>env vars defined by the command. optionalvalidate = [UNSUPPORTED]when true, throws an error if a required env var is missing. ReturnsPromise<void>