def METHOD_NAME(self, namespace, check_name: str):
    """
    Initial page - Data Foundation / Storage Systems tab / StorageSystem details / ocs-storagecluster-cephblockpool
    Method to check that the pvc's from the UI are the same as the expected pvc's.
    For each pvc, initially added, filled and saved in PvcCapacityDeploymentList the method checks
    that the pvc is displayed in the UI, and the value under each PVC name matches to expected.
    Important that the method is called after the pvc's are created and filled in PvcCapacityDeploymentList.
    Args:
        namespace (str): Namespace name to select
        check_name (str): Name of the check to be displayed in the report
    Returns:
        dict: Dictionary of the check results or None if all checks passed
    """
    self.select_capacity_resource("PersistentVolumeClaims", namespace)
    pvc_to_size_dict = self.read_capacity_breakdown()
    self.take_screenshot()
    if not all(
        [
            pvc_to_size_dict.get(pvc_name)
            for pvc_name in PvcCapacityDeploymentList().get_pvc_names_list()
        ]
    ):
        self.take_screenshot()
        self.copy_dom()
        return {
            check_name: f"pvc's from UI: {PvcCapacityDeploymentList().get_pvc_names_list()} "
            f"are not the same as expected pvc's: {pvc_to_size_dict}"
        }
    for data_struct in PvcCapacityDeploymentList():
        used_capacity_ui: str = pvc_to_size_dict[data_struct.pvc_obj.name]
        used_capacity_expected_int = data_struct.capacity_size
        if used_capacity_expected_int is None:
            self.take_screenshot()
            self.copy_dom()
            return {
                check_name: f"Failed to extract a number from the value given at UI "
                f"for the pvc: {data_struct.pvc_obj.name}"
            }
        if not compare_mem_usage(
            used_capacity_expected_int, used_capacity_ui, deviation_accepted=10
        ):
            self.take_screenshot()
            self.copy_dom()
            return {
                check_name: f"pvc {data_struct.pvc_obj.name} capacity is not as expected. "
                f"cli capacity: {data_struct.capacity_size}GiB | ui capacity {used_capacity_ui}"
            }
        else:
            logger.info(f"pvc {data_struct.pvc_obj.name} capacity is as expected.")