def METHOD_NAME(cls, client: AwsClient, volume_type: str, region: str) -> "Optional[AwsPricingPrice]":
    if volume_type not in EBS_TO_PRICING_NAMES:
        return None
    search_filter = [
        {"Type": "TERM_MATCH", "Field": "volumeType", "Value": EBS_TO_PRICING_NAMES[volume_type]},
        {"Type": "TERM_MATCH", "Field": "volumeApiName", "Value": volume_type},
        {"Type": "TERM_MATCH", "Field": "location", "Value": pricing_region(region)},
    ]
    return cls.single_price_for(client, "AmazonEC2", search_filter)