nest(new SsmlBreak($attributes)); } /** * Add Emphasis child. * * @param string $words Words to emphasize * @param array $attributes Optional attributes * @return SsmlEmphasis Child element. */ public function emphasis($words, $attributes = []): SsmlEmphasis { return $this->nest(new SsmlEmphasis($words, $attributes)); } /** * Add Lang child. * * @param string $words Words to speak * @param array $attributes Optional attributes * @return SsmlLang Child element. */ public function lang($words, $attributes = []): SsmlLang { return $this->nest(new SsmlLang($words, $attributes)); } /** * Add Phoneme child. * * @param string $words Words to speak * @param array $attributes Optional attributes * @return SsmlPhoneme Child element. */ public function phoneme($words, $attributes = []): SsmlPhoneme { return $this->nest(new SsmlPhoneme($words, $attributes)); } /** * Add Prosody child. * * @param string $words Words to speak * @param array $attributes Optional attributes * @return SsmlProsody Child element. */ public function prosody($words, $attributes = []): SsmlProsody { return $this->nest(new SsmlProsody($words, $attributes)); } /** * Add Say-As child. * * @param string $words Words to be interpreted * @param array $attributes Optional attributes * @return SsmlSayAs Child element. */ public function say_As($words, $attributes = []): SsmlSayAs { return $this->nest(new SsmlSayAs($words, $attributes)); } /** * Add Sub child. * * @param string $words Words to be substituted * @param array $attributes Optional attributes * @return SsmlSub Child element. */ public function sub($words, $attributes = []): SsmlSub { return $this->nest(new SsmlSub($words, $attributes)); } /** * Add W child. * * @param string $words Words to speak * @param array $attributes Optional attributes * @return SsmlW Child element. */ public function w($words, $attributes = []): SsmlW { return $this->nest(new SsmlW($words, $attributes)); } /** * Add Level attribute. * * @param string $level Specify the degree of emphasis */ public function setLevel($level): self { return $this->setAttribute('level', $level); } }