style.getVariableMode(VariableCollecton, options?)Retrieve the variable mode applied to a style for a given variable collection. A collection can define multiple modes, but a style can have only one variable mode applied per collection.
BreakpointId: Identifies the responsive breakpoint to get styles for.
PseudoStateKey: Specifies a CSS pseudo-class to get styles for.
A Promise that resolves to a VariableMode object or null if the variable mode isn’t found.