Allows a user to update a specific attribute (one at a time).
cognitoidentityprovider_update_user_attributes(UserAttributes,
AccessToken)[required] An array of name-value pairs representing user attributes.
For custom attributes, you must prepend the custom: prefix to the
attribute name.
[required] The access token for the request to update user attributes.
svc$update_user_attributes(
UserAttributes = list(
list(
Name = "string",
Value = "string"
)
),
AccessToken = "string"
)