pub fn all(ftx: FunctionContext) -> Result(Value, ExecutionError)
pub fn exists( ftx: FunctionContext, ) -> Result(Value, ExecutionError)
pub fn exists_one( ftx: FunctionContext, ) -> Result(Value, ExecutionError)
pub fn filter( ftx: FunctionContext, ) -> Result(Value, ExecutionError)
pub fn has(ftx: FunctionContext) -> Result(Value, ExecutionError)
pub fn map(ftx: FunctionContext) -> Result(Value, ExecutionError)
pub fn size( ftx: FunctionContext, ) -> Result(Value, ExecutionError)