message: denote send keys key sequence arg type
diff: @@ -142,6 +142,11 @@ export const ArgTypes = {
  name: "form locator",
  description: "An element locator for the form you want to submit."
  },
  + keySequence: {
  + name: "key sequence",
  + description: "A sequence of keys to type, can be used to send key strokes (e.g.\
  + ${KEY_ENTER})."
  + },
  locator: {
  name: "locator",
  description: "An element locator."
  @@ -593,7 +598,7 @@ class CommandList {
  into the page directly, this command will not replace the \
  existing content.",
  target: ArgTypes.locator,
  - value: ArgTypes.value
  + value: ArgTypes.keySequence
  }],
  [ "setSpeed", {
  name: "set speed",
  @@ -605,8 +610,8 @@ class CommandList {
  }],
  [ "store", {
  name: "store",
  - description: "Save a target expression as a variable for easy re-use.",
  - target: ArgTypes.expression,
  + description: "Save a target string as a variable for easy re-use.",
  + target: ArgTypes.text,
  value: ArgTypes.variableName
  }],
  [ "storeAttribute", {
  