/// <summary>
 /// Initializes a new instance of the <see cref="DocumentHelper"/> class.
 /// </summary>
 /// <param name="filter"><see cref="RouteConstraintFilter"/> instance.</param>
 /// <param name="acceptor"><see cref="IAcceptor"/> instance.</param>
 public DocumentHelper(RouteConstraintFilter filter, IOpenApiSchemaAcceptor acceptor)
 {
     this._filter   = filter.ThrowIfNullOrDefault();
     this._acceptor = acceptor.ThrowIfNullOrDefault();
 }
 /// <summary>
 /// Initializes a new instance of the <see cref="DocumentHelper"/> class.
 /// </summary>
 /// <param name="filter"><see cref="RouteConstraintFilter"/> instance.</param>
 public DocumentHelper(RouteConstraintFilter filter)
 {
     this._filter = filter.ThrowIfNullOrDefault();
 }