use client in static Program scope
use client in static Program scope

SparkPost/gists-and-code-snippets,SparkPost/gists-and-code-snippets,SparkPost/code-snippets,SparkPost/code-snippets,SparkPost/code-snippets,SparkPost/gists-and-code-snippets,SparkPost/gists-and-code-snippets,SparkPost/code-snippets,SparkPost/code-snippets,SparkPost/code-snippets,SparkPost/code-snippets,SparkPost/gists-and-code-snippets,SparkPost/code-snippets,SparkPost/code-snippets,SparkPost/code-snippets,SparkPost/code-snippets,SparkPost/code-snippets,SparkPost/gists-and-code-snippets