src/Resource/ContentType.php
public function addUnknownField(string $name): Field
    {
        $this->fields[$name] = new Field($name, $name, 'Unknown');

        return $this->fields[$name];
    }
public function addUnknownField(string $name): Field
    {
        $this->fields[$name] = new Field($name, $name, 'Unknown');

        return $this->fields[$name];
    }
Adds a runtime field, of type unknown.

@param string $name

@return Field