feat(samples): increase logging client scope (#670)
feat(samples): increase logging client scope (#670)

Don't instantiate Logging client every function invocation. b/141366779

Co-authored-by: Benjamin E. Coe <69440dae14aaa9fe2429b324bfce03449d09e1db@google.com>

googleapis/nodejs-logging,googleapis/nodejs-logging,googleapis/nodejs-logging