Enforce type hints for idpf.py idpf_poplar.py tests/*idpf*.py

poc/idpf.py

@@ -2,35 +2,33 @@
 
 from __future__ import annotations
 
-from typing import Union
-
-import field
+from typing import Any, Union
 
 
 class Idpf:
     """An Incremental Distributed Point Function (IDPF)."""
 
     # Number of keys generated by the IDPF-key generation algorithm.
-    SHARES: int = None
+    SHARES: int
 
     # Bit length of valid input values (i.e., the length of `alpha` in bits).
-    BITS: int = None
+    BITS: int
 
     # The length of each output vector (i.e., the length of `beta_leaf` and
     # each element of `beta_inner`).
-    VALUE_LEN: int = None
+    VALUE_LEN: int
 
     # Size in bytes of each IDPF key share.
-    KEY_SIZE: int = None
+    KEY_SIZE: int
 
     # Number of random bytes consumed by the `gen()` algorithm.
-    RAND_SIZE: int = None
+    RAND_SIZE: int
 
     # The finite field used to represent the inner nodes of the IDPF tree.
-    FieldInner: field.Field = None
+    FieldInner: Any = None
 
     # The finite field used to represent the leaf nodes of the IDPF tree.
-    FieldLeaf: field.Field = None
+    FieldLeaf: Any = None
 
     # Type alias for the output of `eval()`.
     Output = Union[list[list[FieldInner]],

poc/idpf_poplar.py

@@ -226,7 +226,7 @@ def decode_public_share(IdpfPoplar, encoded):
         return correction_words
 
     @classmethod
-    def with_bits(cls, bits: int):
+    def with_bits(cls, bits):
         """
         Set `BITS`.