src/Builder.php
public function field(string $field, ...$rules): self
    {
        $this->validators[$field] = $this->parser->parse($rules);
        return $this;
    }
public function field(string $field, ...$rules): self
    {
        $this->validators[$field] = $this->parser->parse($rules);
        return $this;
    }
public function field ( string $ field , ... $ rules ) : self { $ this -> validators [ $ field ] = $ this -> parser -> parse ( $ rules ) ; return $ this ; }
Adds one or more rules to this builder.

@param string $field The field to validate
@param string|object|array $rules Either a string name, an associative
array, or an object with name → arguments
@return $this provides a fluent interface
Adds one or more rules to this builder .