//! Defines the types for adding multiple pipelines into a `PipelineSet` and retaining a handle to
//! each pipeline for constructing a `PipelineHandleChain`.
use BorrowBag;
use Arc;
/// Represents the set of all `Pipeline` instances that are available for use when building a
/// `Router`. A `PipelineSet` is "frozen".
pub type PipelineSet<P> = ;
/// A set of `Pipeline` instances that is currently being defined, and can have more `Pipeline`
/// instances added.
pub type EditablePipelineSet<P> = ;
/// Create an empty set of `Pipeline` instances.
///
/// See BorrowBag#add to insert new `Pipeline` instances.
/// Wraps the current set of `Pipeline` instances into a thread-safe reference counting pointer for
/// use with the `Router`.