Typescript `declare function concat<T>(sources: Array<Wrappable<T>>);`

index.cstml

<Program>
  body[]:
  <_>
    .: :TS:
    <DeclarationStatement>
      sigilToken*: <*Keyword 'declare' />
      declaration*:
      <_>
        #: :Space: <*Space ' ' />
        <FunctionDeclaration>
          sigilToken*: :..: <*Keyword 'function' />
          id:
          <_>
            #: :Space: <*Space ' ' />
            .: :..:
            <Identifier>
              value*: <*Literal 'concat' />
            </>
          </>
          <TypeParametersDeclaration>
            openToken*: <*Punctuator '<' { balanced: '>' } />
            params[]:
            <TypeParameterDeclaration>
              name: :..:
              <Identifier>
                value*: <*Literal 'T' />
              </>
            </>
            closeToken*: <*Punctuator '>' { balancer: true } />
          </>
          openParamsToken*: :..: <*Punctuator '(' { balanced: ')' } />
          params[]+: :..:
          <Identifier>
            value*: <*Literal 'sources' />
          </>
          <TypeAnnotation>
            sigilToken*: <*Keyword ':' />
            type:
            <_>
              #: :Space: <*Space ' ' />
              <Type>
                <ReferenceType>
                  name: :..:
                  <Identifier>
                    value*: <*Literal 'Array' />
                  </>
                  params[]:
                  <TypeParameters>
                    openToken*: <*Punctuator '<' { balanced: '>' } />
                    elements[]:
                    <ReferenceType>
                      name: :..:
                      <Identifier>
                        value*: <*Literal 'Wrappable' />
                      </>
                      params[]:
                      <TypeParameters>
                        openToken*: <*Punctuator '<' { balanced: '>' } />
                        elements[]:
                        <ReferenceType>
                          name: :..:
                          <Identifier>
                            value*: <*Literal 'T' />
                          </>
                        </>
                        closeToken*: <*Punctuator '>' { balancer: true } />
                      </>
                    </>
                    closeToken*: <*Punctuator '>' { balancer: true } />
                  </>
                </>
              </>
            </>
          </>
          closeParamsToken*: :..: <*Punctuator ')' { balancer: true } />
        </>
      </>
    </>
  </>
  body[]:
  <EmptyStatement>
    endToken*: <*Punctuator ';' />
  </>
  #: :Space: <*Space '\n' />
</>