use ;
/// Request to begin a single-URL streaming crawl.
///
/// Wraps a single seed URL for delivery through the streaming-adapter binding
/// surface. Required as a struct because alef's streaming adapter requires a
/// named request type — primitives are not supported.
/// Request to begin a multi-URL streaming crawl.
///
/// Wraps a set of seed URLs for delivery through the streaming-adapter binding
/// surface. Required as a struct because alef's streaming adapter requires a
/// named request type — primitives are not supported.