Recompile compiler lib (#132)

* Recompile compiler lib

* Update compiler lib

* Fix typechecking issue

* Update documentation

Author: AdrienVannson

betterproto2/docs/development.md

@@ -5,15 +5,7 @@ This page targets the betterproto maintainers.
 ## Recompiling the lib proto files
 
 After some updates in the compiler, it might be useful to recompile the standard Google proto files used by the
-compiler. As the proto files are distributed with `protoc`, their path might depend on your installation.
-
-```bash
-mkdir lib
-protoc \
-    --python_betterproto2_out=lib \
-    -I /usr/include/ \
-    /usr/include/google/protobuf/*.proto
-```
+compiler. The output of the `compiler_lib` test should be used.
 
 !!! warning
     These proto files are written with the `proto2` syntax, which is not supported by betterproto. For the compiler to

betterproto2_compiler/src/betterproto2_compiler/known_types/duration.py

@@ -30,15 +30,15 @@ def delta_to_json(delta: datetime.timedelta) -> str:
 
     # TODO typing
     @classmethod
-    def from_dict(cls, value):
+    def from_dict(cls, value, *, ignore_unknown_fields: bool = False):
         if isinstance(value, str):
             if not re.match(r"^\d+(\.\d+)?s$", value):
                 raise ValueError(f"Invalid duration string: {value}")
 
             seconds = float(value[:-1])
             return Duration(seconds=int(seconds), nanos=int((seconds - int(seconds)) * 1e9))
 
-        return super().from_dict(value)
+        return super().from_dict(value, ignore_unknown_fields=ignore_unknown_fields)
 
     # TODO typing
     def to_dict(

betterproto2_compiler/src/betterproto2_compiler/known_types/timestamp.py

@@ -55,13 +55,13 @@ def timestamp_to_json(dt: datetime.datetime) -> str:
 
     # TODO typing
     @classmethod
-    def from_dict(cls, value):
+    def from_dict(cls, value, *, ignore_unknown_fields: bool = False):
         if isinstance(value, str):
             dt = dateutil.parser.isoparse(value)
             dt = dt.astimezone(datetime.timezone.utc)
             return Timestamp.from_datetime(dt)
 
-        return super().from_dict(value)
+        return super().from_dict(value, ignore_unknown_fields=ignore_unknown_fields)
 
     # TODO typing
     def to_dict(