lib/metadata/client-state.js
function ClientState(hosts, openConnections, inFlightQueries) {
  this._hosts = hosts;
  this._openConnections = openConnections;
  this._inFlightQueries = inFlightQueries;
}
function ClientState(hosts, openConnections, inFlightQueries) {
  this._hosts = hosts;
  this._openConnections = openConnections;
  this._inFlightQueries = inFlightQueries;
}
Creates a new instance of <code>ClientState</code>.
@classdesc
Represents the state of a {@link Client}.
<p>
Exposes information on the connections maintained by a Client at a specific time.
</p>
@alias module:metadata~ClientState
@param {Array<Host>} hosts
@param {Object.<String, Number>} openConnections
@param {Object.<String, Number>} inFlightQueries
@constructor