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# Source code for langchain_core.utils.strings

    from typing import Any, List

    def stringify_value(val: Any) -> str:
        """Stringify a value.

        Args:
            val: The value to stringify.

        Returns:
            str: The stringified value.
        """
        if isinstance(val, str):
            return val
        elif isinstance(val, dict):
            return "\n" + stringify_dict(val)
        elif isinstance(val, list):
            return "\n".join(stringify_value(v) for v in val)
        else:
            return str(val)

    def stringify_dict(data: dict) -> str:
        """Stringify a dictionary.

        Args:
            data: The dictionary to stringify.

        Returns:
            str: The stringified dictionary.
        """
        text = ""
        for key, value in data.items():
            text += key + ": " + stringify_value(value) + "\n"
        return text

    def comma_list(items: List[Any]) -> str:
        """Convert a list to a comma-separated string."""
        return ", ".join(str(item) for item in items)