var cloud.google.com/go/compute/metadata.projNum

2 uses

	cloud.google.com/go/compute/metadata (current package)
		metadata.go#L60: 	projNum = &cachedValue{k: "project/numeric-project-id", trim: true}
		metadata.go#L360: func (c *Client) NumericProjectID() (string, error) { return projNum.get(c) }