(b) The study commission will be comprised of twenty (20) members: one member of the house of representatives, to be appointed by the speaker of the house; one member of the senate, to be appointed by the president of the senate; two (2) of whom shall be individuals restrained by a covered facility or knowledgeable about restraint, one of whom to be appointed by the speaker of the house and one of whom to be appointed by the president of the senate; two (2) of whom shall be family members of individuals restrained by a covered facility or knowledgeable about restraint, one of whom to be appointed by the speaker of the house and one of whom to be appointed by the president of the senate; one of whom shall be the director of the department of children, youth and families, or designee; one of whom shall be the commissioner of the department of elementary and secondary education, or designee; one of whom shall be the director of the department of behavioral healthcare, developmental disabilities and hospitals, or designee; one of whom shall be the director of the Paul V. Sherlock center on disabilities, or designee; one of whom shall be the director of the Rhode Island developmental disabilities council, or designee; one of whom shall be the Rhode Island child advocate, or designee; one of whom shall be the Rhode Island mental health advocate, or designee; one of whom shall be the director of the Disability Law Center, or designee; one of whom shall be the director of Bradley Hospital, or designee; one of whom shall be the director of the Hospital Association of Rhode Island, or designee; one of whom shall be the director of Butler Hospital, or designee; one of whom shall be the director of the Groden Center, or designee; one of whom shall be the director of the Community Provider Network of Rhode Island; and one of whom shall be a director of a provider of mental health services. In lieu of any appointment of a member of the legislature to a permanent advisory commission, a legislative study commission, or any commission created by an act of the general assembly, the appointing authority may appoint a member of the general public to serve in lieu of a legislator; provided that the majority leader or the minority leader of the political party which is entitled to the appointment consents to the appointment of the member of the general public. Vacancies in said commission shall be filled in like manner as the original appointment.