Graphql schema documentation

schema {
#   The query root of Snowflake's GraphQL interface.
query: Query
#   The mutation root of Snowflake's GraphQL interface. Snowflake provides mutations 
#   that implement Relay Input Object Mutations Specifications.
mutation: Mutation
#   The subscription root of Snowflake's GraphQL interface.
# 
#   Snowflake provides two types of definition in its framework queries:
#   
#   * `onVerbObject`
#   
#   * `onObjectVerb(UUID!)`
# 
#   `onVerbObject` subscriptions are global, and are broadcast whenever the 
#   corresponding mutation occurs. These can be used to subscribe to mutations that 
#   are triggered by the client.
#   `onObjectVerb(UUID!)` subscriptions are primarily used by scraping, 
#   installation, and orchestration mutations. These are used to subscribe to events 
#   happening on a specific long-existing object that may or may not be the result 
#   of a client request.
# 
#   There is some subtlely in the different types of subscriptions that one should 
#   be aware about.
# 
#   For example, `onStopEmulation` is broadcast when the `stopEmulation` mutation 
#   responds to some client. However, `onEmulationStop` is broadcast when the 
#   emulation process exits. Hence, `onStopEmulation` may never be broadcast, even 
#   if `onEmulationStop` was.
# 
#   In most cases, it is more useful to subscribe to the `onObjectVerb` subscription 
#   for an object whenever feasible.
subscription: Subscription
}