// bagian state

this.state = {
	toasts: [{
            title: 'Berhasil menyimpan data',
            color: 'success',
            iconType: 'check',
            toastLifeTimeMs: 15000,
            text: (
              <p>
                Pembuatan akun berhasil.
              </p>
            ),
          }]
}

// tag
<EuiGlobalToastList
                toasts={this.state.toasts}
                // dismissToast={this.removeToast}
                toastLifeTimeMs={6000}
              />