An error that occurred during the resolution process
An error caused by attempting to fulfil a dependency that was circular
@note This exception will be thrown iff a {Vertex} is added to a
{DependencyGraph} that has a {DependencyGraph::Vertex#path_to?} an
existing {DependencyGraph::Vertex}
A specific resolution from a given {Resolver}
Indicates a problem with the DNS request.
A generic resource abstract class.
A Pointer to another DNS name.
Image that provides a visual identification for the Feed. Image should have an aspect ratio of 1:1