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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def validate_meta_object(meta: Dict[str, Any], allow_extra_meta_fields: bool) -> None: """ Validates that every key is one of `META_FIELDS` and has a value of the expected type. """

    for key, value in meta.items():
        if key in META_FIELDS:
            if type(value) is not META_FIELDS[key]:
                raise ValidationError(
                    f"Values for {key} are expected to have the type {META_FIELDS[key]}, "
                    f"instead got {type(value)}."
                )
        elif allow_extra_meta_fields:
            if key[:2] != "x-":
                raise ValidationError(
                    "Undefined meta fields need to begin with 'x-', "
                    f"{key} is not a valid undefined meta field."
                )
        else:
            raise ValidationError(
                f"{key} is not a permitted meta field. To allow undefined fields, "
                "set `allow_extra_meta_fields` to True."
            )