LazyRecord\Schema\SchemaCollection::expandDependency PHP Method

    public function expandDependency()
    {
        $expands = array();
        foreach ($this->schemas as $schema) {
            $expands = array_merge($expands, $this->expandSchemaDependency($schema));
        }
        $expands = array_unique($expands);
        return new self($expands);
    }