diff --git a/tjs_ns0.py b/tjs_ns0.py
index 49141ed..ed3e41e 100644
--- a/tjs_ns0.py
+++ b/tjs_ns0.py
@@ -31,39 +31,14 @@ class TJS_NS0:
         self.pos += length
         return result
     
-    def peek_bytes(self, length):
-        if self.pos + length > len(self.data):
-            raise ValueError("Unexpected end of data")
-        return self.data[self.pos:self.pos + length]
-    
     def read_u16(self):
         return struct.unpack('<H', self.read_bytes(2))[0]
-    
-    def peek_u16(self):
-        return struct.unpack('<H', self.peek_bytes(2))[0]
 
     def read_u32(self):
         return struct.unpack('<I', self.read_bytes(4))[0]
-
-    def peek_u32(self):
-        return struct.unpack('<I', self.peek_bytes(4))[0]
     
-    def read_u64(self):
-        return struct.unpack('<Q', self.read_bytes(8))[0]
-
-    def peek_u64(self):
-        return struct.unpack('<Q', self.peek_bytes(8))[0]
-
-    # def parse_obj(self):
-    #     obj_type = self.peek_u16()
-    #     first_byte = obj_type & 0xFF
-    #     if first_byte == 0xC1:
-    #         return self.parse_dict()
-    #     elif first_byte == 0x81:
-    #         self.pos += 2
-    #         return self.parse_array()
-    #     else:
-    #         return self.parse_array()
+    def read_i64(self):
+        return struct.unpack('<q', self.read_bytes(8))[0]
 
     def parse_string(self):
         str_len = self.read_u32()
@@ -76,7 +51,7 @@ class TJS_NS0:
         if first_byte == 0x02:
             return self.parse_string()
         elif first_byte == 0x04:
-            return self.read_u64()
+            return self.read_i64()
         elif first_byte == 0x00:
             return value_type >> 8
         elif first_byte == 0xC1: