GAS Advanced Slides API batchUpdate updateParagraphStyle

I cannot find the Google documentation for updateParagraphStyle in batchUpdate.

I am attempting to align text in text boxes in slides. The horizontal and vertical alignments seem to be indifferent places. Horizontal is part of the paragraph styling? I have read the entries for documents and sheets also looking for the correct syntax. I don't want anyone to write my code. I just want to find the documentation.

My guess for vertical alignment within shape:

updateShapeProperties': {
     ,"shapeProperties": {
        "contentAlignment": 'MIDDLE'  // TOP, MIDDLE, BOTTOM

My guess for horizontal alignment within shape:

updateShapeProperties
   'updateParagraphStyle': {
        'style': {
          "alignment":   // CENTER, START, END, JUSTIFIED

My best guesses above. I never found paragraph style in slides documentation.

Solution

Your guess is correct.

Vertical Alignment can be set using UpdateShapePropertiesRequest -> ShapeProperties -> contentAlignment

Horizontal Alignment can be set using UpdateParagraphStyleRequest -> ParagraphStyle -> alignment

References: