feat: implement avro load schema funcs typings (#87)

confluent_kafka-stubs/avro/load.pyi

@@ -2,3 +2,27 @@
 types-confluent-kafka: A package providing type hints for the confluent-kafka Python package.
 This package is licensed under the Apache 2.0 License.
 """
+
+# standard library
+from pathlib import Path
+from typing import TYPE_CHECKING
+
+# pypi/conda library
+from confluent_kafka.avro.error import ClientError as ClientError
+
+if TYPE_CHECKING:
+    """Helping users who installed avro package can get type hints"""
+    try:
+        # pypi/conda library
+        from avro.schema import Schema  # pyright: ignore # this cannot be resolved if avro isn't installed
+    except ImportError:
+        # standard library
+        from typing import Any as Schema
+
+def loads(schema_str: str) -> "Schema":
+    """Parse a schema given a schema string"""
+    ...
+
+def load(fp: str | Path) -> "Schema":
+    """Parse a schema from a file path"""
+    ...