code: func (c *DOMSnapshot) CaptureSnapshot(computedStyles []string) ([]*DOMSnapshotDocumentSnapshot, []string, error) {
  	var v DOMSnapshotCaptureSnapshotParams
  	v.ComputedStyles = computedStyles
  	return c.CaptureSnapshotWithParams(&v)
  }
docs: // CaptureSnapshot - Returns a document snapshot, including the full DOM tree of the root node (including iframes, template contents, and imported documents) in a flattened array, as well as layout and white-listed computed style information for the nodes. Shadow DOM in the returned DOM tree is flattened.
  // computedStyles - Whitelist of computed styles to return.
  // Returns -  documents - The nodes in the DOM tree. The DOMNode at index 0 corresponds to the root document. strings - Shared string table that all string properties refer to with indexes.