et('authors') -%}
  {%- if metadata.get('reviewers') and metadata.get('reviewers') | length >=1 -%}
    {%- set contributors = contributors + metadata.get('reviewers') -%}
  {%- endif -%}
  {%- if metadata.get('analysts') and metadata.get('analysts') | length >=1 -%}
    {%- set contributors = contributors + metadata.get('analysts') -%}
  {%- endif -%}
  {%- if metadata.get('editors') and metadata.get('editors') | length >=1 -%}
    {%- set contributors = contributors + metadata.get('editors') -%}
  {%- end