# Functions
Add returns the result of a + b for each named resource.
Contains returns true if the specified item is in the list of items.
Equals returns true if the two lists are equivalent.
Intersection returns the intersection of both list of resources.
IsZero returns true if each key maps to the quantity value 0.
LessThanOrEqual returns true if a < b for each key in b If false, it returns the keys in a that exceeded b.
Mask returns a new resource list that only has the values with the specified names.
ResourceNames returns a list of all resource names in the ResourceList.
Subtract returns the result of a - b for each named resource.
ToSet takes a list of resource names and converts to a string set.
# Structs
UsageStats is result of measuring observed resource use in the system.
UsageStatsOptions is an options structs that describes how stats should be calculated.