Module keys 

Key definitions and chord parsing, shared by both engines.

CDP and BiDi name keys in different namespaces: CDP wants KeyboardEvent.key ("ArrowDown") plus a Windows virtual key code, while BiDi wants the WebDriver normalised key values (\u{E015} for ArrowDown). Neither is derivable from the other, so a KeyDef carries both rather than converting at the call site.

Scope is the US layout: named keys, the modifiers, and printable ASCII. Anything beyond that belongs in type, which goes through Input.insertText and is layout-independent.

Structs

Chord

A key plus the modifiers held while it is pressed.

KeyDef

Everything both engines need to press one key.

Enums

Modifier

CDP modifier bitmask values. The mask goes on every event in a chord, including the target key’s — leaving it off there is the usual reason Control+A selects nothing.

Constants

ENTER

The Enter definition, so press_enter keeps its exact wire payload.

Functions

lookup

Look up one key by name. Named keys are case-insensitive; a single character is taken literally, so "a" and "A" differ.

parse_chord

Parse "Control+Shift+K". The last segment is the key; the rest are modifiers. A trailing + means the + key, as in "Control++".