DNS utility methods.  
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◆ resolveWithHostname:
Resolves a host name to an IP address. 
- Parameters
 - 
  
    | hostname | The host name to resolve.  | 
  
   
 
 
◆ resolveWithName:callback:state:
      
        
          | + (void) resolveWithName:  | 
           | 
          (NSString *)  | 
          name | 
        
        
          | callback: | 
           | 
          (FMLiveSwitchAction2< NSMutableArray *, id > *)  | 
          callback | 
        
        
          | state: | 
           | 
          (id)  | 
          state  | 
        
        
           | 
           | 
           |  | 
        
      
 
Resolves a host name to an IP address. 
- Parameters
 - 
  
    | name | The name to resolve.  | 
    | callback | The callback to invoke when resolution is complete.  | 
    | state | A custom state object to pass into the callback.  | 
  
   
 
 
◆ resolveWithName:callbackBlock:state:
      
        
          | + (void) resolveWithName:  | 
           | 
          (NSString *)  | 
          name | 
        
        
          | callbackBlock: | 
           | 
          (void(^)(NSMutableArray *, id))  | 
          callbackBlock | 
        
        
          | state: | 
           | 
          (id)  | 
          state  | 
        
        
           | 
           | 
           |  | 
        
      
 
Resolves a host name to an IP address. 
- Parameters
 - 
  
    | name | The name to resolve.  | 
    | callbackBlock | The callback to invoke when resolution is complete.  | 
    | state | A custom state object to pass into the callback.  | 
  
   
 
 
◆ resolveWithNameAndCallbackBlockAndState
      
        
          | + (NSMutableArray*, id) resolveWithNameAndCallbackBlockAndState  | 
           | 
           | 
           | 
        
      
 
Resolves a host name to an IP address. 
@inlineparam name The name to resolve. @inlineparam callbackBlock The callback to invoke when resolution is complete. @inlineparam state A custom state object to pass into the callback.