feat: js/py generate declarations from comments (#30)

tools/demo_tool.py

@@ -0,0 +1,32 @@
+from typing import List, Literal, Optional
+
+
+def main(
+    boolean: bool,
+    string: str,
+    string_enum: Literal["foo", "bar"],
+    integer: int,
+    number: float,
+    array: List[str],
+    string_optional: Optional[str] = None,
+    array_optional: Optional[List[str]] = None,
+) -> None:
+    """Demonstrate how to create a tool using Python and how to use comments.
+    Args:
+        boolean: Define a required boolean property
+        string: Define a required string property
+        string_enum: Define a required string property with enum
+        integer: Define a required integer property
+        number: Define a required number property
+        array: Define a required string array property
+        string_optional: Define a optional string property
+        array_optional: Define a optional string array property
+    """
+    print(f"boolean: {boolean}")
+    print(f"string: {string}")
+    print(f"string_enum: {string_enum}")
+    print(f"integer: {integer}")
+    print(f"number: {number}")
+    print(f"array: {array}")
+    print(f"string_optional: {string_optional}")
+    print(f"array_optional: {array_optional}")