src/CFDIReader/PostValidations/Issues.php
public function messages(string $type)
    {
        if ('' === $type) {
            throw new \InvalidArgumentException('The type of messages must be a non-empty string');
        }
        if (! array_key_exists($type, $this->messages)) {
            $this->messages[$type] = new Messages();
        }
        return $this->messages[$type];
    }
public function messages(string $type)
    {
        if ('' === $type) {
            throw new \InvalidArgumentException('The type of messages must be a non-empty string');
        }
        if (! array_key_exists($type, $this->messages)) {
            $this->messages[$type] = new Messages();
        }
        return $this->messages[$type];
    }
Return a message collection of the selected type
If the type does not exists the object is created
@param string $type
@return Messages