DataStructureQ
DataStructureQ[ds]
yields True if ds is a valid data structure and False otherwise.
DataStructureQ[ds,type]
yields True if ds is a valid data structure of the specified type and False otherwise.
Examples
Wolfram Research (2020), DataStructureQ, Wolfram Language function, https://reference.wolfram.com/language/ref/DataStructureQ.html.
Text
Wolfram Research (2020), DataStructureQ, Wolfram Language function, https://reference.wolfram.com/language/ref/DataStructureQ.html.
CMS
Wolfram Language. 2020. "DataStructureQ." Wolfram Language & System Documentation Center. Wolfram Research. https://reference.wolfram.com/language/ref/DataStructureQ.html.
APA
Wolfram Language. (2020). DataStructureQ. Wolfram Language & System Documentation Center. Retrieved from https://reference.wolfram.com/language/ref/DataStructureQ.html