chore(pylint): Fix errors reported by newer version of pylint

Author: c0r0n3r

cryptoparser/common/parse.py

@@ -126,13 +126,17 @@ def unparsed(self):
     def unparsed_length(self):
         return len(self._parsable) - self._parsed_length
 
+    @abc.abstractmethod
+    def _parse_numeric(self, name, converter, item_size):
+        raise NotImplementedError()
+
     def parse_parsable(self, name, parsable_class, item_size=None):
         if item_size is None:
             parsed_object, parsed_length = parsable_class.parse_immutable(
                 self._parsable[self._parsed_length:]
             )
         else:
-            parsable_length, _ = self._parse_numeric_array(name, 1, item_size, int)
+            parsable_length, _ = self._parse_numeric(name, int, item_size)
             parsable_length = parsable_length[0]
             parsed_object = parsable_class.parse_exact_size(
                 self._parsable[self._parsed_length + item_size:self._parsed_length + parsable_length + item_size]
@@ -242,6 +246,9 @@ def _parse_numeric_array(  # pylint: disable=too-many-arguments,too-many-positio
 
         return value, item_offset - self._parsed_length
 
+    def _parse_numeric(self, name, converter, item_size):
+        raise NotImplementedError()
+
     def parse_numeric(self, name, converter=int):
         value, parsed_length = self._parse_numeric_array(name, 1, None, converter, False)
         self._parsed_values[name] = value[0]
@@ -529,6 +536,9 @@ def _parse_numeric_array(self, name, item_num, item_size, item_numeric_class):
 
         return value, item_num * item_size
 
+    def _parse_numeric(self, name, converter, item_size):
+        return self._parse_numeric_array(name, 1, item_size, converter)
+
     def parse_numeric(self, name, size, converter=int):
         value, parsed_length = self._parse_numeric_array(name, 1, size, converter)