def METHOD_NAME(namespace_name: Optional[pulumi.Input[str]] = None,
                                  permission_binding_name: Optional[pulumi.Input[str]] = None,
                                  resource_group_name: Optional[pulumi.Input[str]] = None,
                                  opts: Optional[pulumi.InvokeOptions] = None) -> pulumi.Output[GetPermissionBindingResult]:
    """
    Get properties of a permission binding.
    Azure REST API version: 2023-06-01-preview.
    :param str namespace_name: Name of the namespace.
    :param str permission_binding_name: Name of the permission binding.
    :param str resource_group_name: The name of the resource group within the user's subscription.
    """
    ...