code: def upload_check(self, filename=None, folder_key=None, filedrop_key=None,
                       size=None, hash_=None, path=None, resumable=None):
          
          return self.request('upload/check', QueryParams({
              'filename': filename,
              'folder_key': folder_key,
              'filedrop_key': filedrop_key,
              'size': size,
              'hash': hash_,
              'path': path,
              'resumable': resumable
          }))
docs: upload/check
  
          http://www.mediafire.com/developers/core_api/1.3/upload/#check