src/DefaultContextFactory.php
public function getFunction(string $name): ExpressionFunction
    {
        if (isset($this->functions[$name])) {
            return $this->functions[$name];
        }
        
        throw new FunctionNotFoundException(\sprintf('Expression function not registered: "%s"', $name));
    }
public function getFunction(string $name): ExpressionFunction
    {
        if (isset($this->functions[$name])) {
            return $this->functions[$name];
        }
        
        throw new FunctionNotFoundException(\sprintf('Expression function not registered: "%s"', $name));
    }
{@inheritdoc}