This class represents a static approximation to the
dynamic call-graph. A
all calls made to a function for a given context.
Gets a callee invocation. That is any invocation made from within this invocation.
Gets the call from which this invocation was made.
Gets the callee invocation for the given callsite. The callsite must be within the function of this invocation.
Gets the caller invocation of this invocation, if any.
Holds if this is an invocation