parameters: (op)
return_statement: return op.type == "Merge" or op.type == "RefMerge"
docstring: Return true if `op` is a Merge.
docstring_summary: Return true if `op` is a Merge.
docstring_tokens: Return true if op is a Merge .
function: def IsMerge(op):
    """Return true if `op` is a Merge."""
    return op.type == "Merge" or op.type == "RefMerge"
function_tokens: def IsMerge ( op ) : return op . type == "Merge" or op . type == "RefMerge"