Follow-up to #61 (#63)

Why
===

I didn't realize we didn't have codegen execution tests, I'll be more
careful in the future.

What changed
============

Fixed two runtime issues

Test plan
=========

Manual testing

Author: blast-hardcheese

replit_river/codegen/client.py

@@ -278,7 +278,7 @@ def generate_river_client_module(
                         f"      '{schema_name}',",
                         f"      '{name}',",
                         "      input,",
-                        "      lambda x: TypeAdapter({input_type}).dump_python(x, ",
+                        f"      lambda x: TypeAdapter({input_type}).dump_python(x, ",
                         "        by_alias=True,",
                         "        exclude_none=True,",
                         "      ),",
@@ -298,7 +298,7 @@ def generate_river_client_module(
                         f"      '{schema_name}',",
                         f"      '{name}',",
                         "      input,",
-                        "      lambda x: TypeAdapter({input_type}).dump_python(x,",
+                        f"      lambda x: TypeAdapter({input_type}).dump_python(x,",
                         "        by_alias=True,",
                         "        exclude_none=True,",
                         "      ),",
@@ -326,8 +326,8 @@ def generate_river_client_module(
                             f"      '{name}',",
                             "      init,",
                             "      inputStream,",
-                            f"      lambda TypeAdapter({init_type}).validate_python,",
-                            "      lambda x: TypeAdapter({input_type}).dump_python(x, ",
+                            f"      TypeAdapter({init_type}).validate_python,",
+                            f"      lambda x: TypeAdapter({input_type}).dump_python(x,",
                             "        by_alias=True,",
                             "        exclude_none=True,",
                             "      ),",
@@ -349,7 +349,7 @@ def generate_river_client_module(
                             "     None,",
                             "     inputStream,",
                             "     None,",
-                            "      lambda x: TypeAdapter({input_type}).dump_python(x, ",
+                            f"      lambda x: TypeAdapter({input_type}).dump_python(x,",
                             "        by_alias=True,",
                             "        exclude_none=True,",
                             "      ),",
@@ -373,7 +373,7 @@ def generate_river_client_module(
                             "      init,",
                             "      inputStream,",
                             f"     TypeAdapter({init_type}).validate_python,",
-                            "      lambda x: TypeAdapter({init_type}).dump_python(x, ",
+                            f"      lambda x: TypeAdapter({input_type}).dump_python(x,",
                             "        by_alias=True,",
                             "        exclude_none=True,",
                             "      ),",
@@ -395,7 +395,7 @@ def generate_river_client_module(
                             "      None,",
                             "      inputStream,",
                             "      None,",
-                            "      lambda x: TypeAdapter({input_type}).dump_python(x, ",
+                            f"      lambda x: TypeAdapter({input_type}).dump_python(x,",
                             "        by_alias=True,",
                             "        exclude_none=True,",
                             "      ),",