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	// destinationEdgeIndex is a map of vertex -> set of destination IDs
	destinationEdgeIndex map[int]*intSet
	// destinationEdgeThreshold is the minimum number of distinct destination IDs at which to maintain an index
	destinationEdgeThreshold int
}

// namespaceVertexMapping is a map of namespace -> name -> vertex
type namespaceVertexMapping map[string]nameVertexMapping

// nameVertexMapping is a map of name -> vertex

* To fix an existing issue/bug.
    * Make sure to add tests.
* To add a new feature.
    * Make sure to add tests.
    * Make sure to add documentation if it's relevant.

## Help Maintain FastAPI

Help me maintain **FastAPI**! 🤓

There's a lot of work to do, and for most of it, **YOU** can do it.

The main tasks that you can do right now are:

   * example, we could compute the appropriate throttle time for an incoming request, and make the
   * calling thread wait for that time.
   *
   * The simplest way to maintain a rate of QPS is to keep the timestamp of the last granted
   * request, and ensure that (1/QPS) seconds have elapsed since then. For example, for a rate of

   * example, we could compute the appropriate throttle time for an incoming request, and make the
   * calling thread wait for that time.
   *
   * The simplest way to maintain a rate of QPS is to keep the timestamp of the last granted
   * request, and ensure that (1/QPS) seconds have elapsed since then. For example, for a rate of

// SetGCPercent returns the previous setting.
// The initial setting is the value of the GOGC environment variable
// at startup, or 100 if the variable is not set.
// This setting may be effectively reduced in order to maintain a memory
// limit.
// A negative percentage effectively disables garbage collection, unless
// the memory limit is reached.
// See SetMemoryLimit for more details.
func SetGCPercent(percent int) int {

		println(j, ":", held.rank.String(), held.rank, unsafe.Pointer(gp.m.locksHeld[j].lockAddr))
	}
}

// acquireLockRankAndM acquires a rank which is not associated with a mutex
// lock. To maintain the invariant that an M with m.locks==0 does not hold any
// lock-like resources, it also acquires the M.
//
// This function may be called in nosplit context and thus must be nosplit.
//
//go:nosplit

		//
		// Part of the purpose of the vendor directory is to allow the packages in
		// the module to continue to build in GOPATH mode, and GOPATH-mode users
		// won't know about replacement aliasing. How important is it to maintain
		// compatibility?
		fmt.Fprintf(os.Stderr, "warning: %s imported as both %s and %s; making two copies.\n", realPath, realPath, pkg)
	}

	copiedFiles := make(map[string]bool)
	dst := filepath.Join(vdir, pkg)

	// Subsequent blocks, if any. The number and order depend on the block kind.
	Succs []Edge

	// Inverse of successors.
	// The order is significant to Phi nodes in the block.
	// TODO: predecessors is a pain to maintain. Can we somehow order phi
	// arguments by block id and have this field computed explicitly when needed?
	Preds []Edge

	// A list of values that determine how the block is exited. The number

    private final OutputEventListener listener;
    private final LogHeaderFormatter headerFormatter;
    private final boolean verbose;

    // Maintain a hierarchy of all progress operations in progress — heads up: this is a *forest*, not just 1 tree
    private final Map<OperationIdentifier, OperationState> operationsInProgress = new LinkedHashMap<OperationIdentifier, OperationState>();