/// <summary>
 /// Equalses the specified other.
 /// </summary>
 /// <param name="other">The other.</param>
 /// <returns></returns>
 public bool Equals(BsonDocumentQuery other)
 {
     if (ReferenceEquals(null, other))
     {
         return(false);
     }
     if (ReferenceEquals(this, other))
     {
         return(true);
     }
     return(Equals(other.key, key));
 }
 /// <summary>
 /// Equalses the specified other.
 /// </summary>
 /// <param name="other">The other.</param>
 /// <returns></returns>
 public bool Equals(BsonDocumentQuery other)
 {
     if(ReferenceEquals(null, other))
         return false;
     if(ReferenceEquals(this, other))
         return true;
     return Equals(other.key, key);
 }