helper function to create a list of details of one image annotation request

creates a list output from the inputs

create_single_image_request(imagePath, feature, maxNumResults)

Arguments

imagePath	character, file path, URL or Cloud Storage URI of the image
feature	character, one out of: "LABEL_DETECTION", "FACE_DETECTION", "TEXT_DETECTION", "DOCUMENT_TEXT_DETECTION", "LOGO_DETECTION", "LANDMARK_DETECTION"
maxNumResults	integer, the maximum number of results (per image) to be returned.

Value

list of request details for one image