public void applyFixedLengthDataType(String addressString, DataType dt, int length) {
		tx(() -> {
			DataUtilities.createData(program, addr(addressString), dt, length,
				ClearDataMode.CLEAR_ALL_CONFLICT_DATA);
		});
	}
Creates a function by examining the instructions to find the body.

@param addressString the address
@return the function
Ghidra/Features/Base/src/main/java/ghidra/program/database/ProgramBuilder.java